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Update documentation for ScanRight 
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‎Docs/SuperLinq.Docs/apidoc/SuperLinq.SuperEnumerable.ScanRight.md

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---
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uid: ScanRight``1(System.Collections.Generic.IEnumerable{``0},System.Func{``0,``0,``0})
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example: [*content]
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---
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The following code example demonstrates how to execute a right-associative post-fix scan by key on a sequence using `ScanRight`.
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[!code-csharp[](SuperLinq/ScanBy/ScanBy1.linq#L6-)]
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---
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uid: ScanRight``2(System.Collections.Generic.IEnumerable{``0},``1,System.Func{``0,``1,``1})
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example: [*content]
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---
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The following code example demonstrates how to execute a right-associative post-fix scan by key on a sequence using `ScanRight`.
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[!code-csharp[](SuperLinq/ScanBy/ScanBy2.linq#L6-)]

‎Docs/SuperLinq.Docs/apidoc/SuperLinq/ScanRight/ScanRight1.linq

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<Query Kind="Statements">
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<NuGetReference>SuperLinq</NuGetReference>
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<Namespace>SuperLinq</Namespace>
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</Query>
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var sequence = Enumerable.Range(1, 5)
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.Select(x => x.ToString());
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// execute a scan of the sequence
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var result = sequence
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.ScanRight((a, b) => $"({a}+{b})");
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Console.WriteLine(
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"[ \"" +
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string.Join("\", \"", result) +
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"\" ]");
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// This code produces the following output:
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// [ "(1+(2+(3+(4+5))))", "(2+(3+(4+5)))", "(3+(4+5))", "(4+5)", "5" ]

‎Docs/SuperLinq.Docs/apidoc/SuperLinq/ScanRight/ScanRight2.linq

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<Query Kind="Statements">
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<NuGetReference>SuperLinq</NuGetReference>
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<Namespace>SuperLinq</Namespace>
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</Query>
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var sequence = Enumerable.Range(1, 5);
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// execute a scan of the sequence
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var result = sequence
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.ScanRight(
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"6",
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(a, b) => $"({a}+{b})");
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Console.WriteLine(
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"[ \"" +
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string.Join("\", \"", result) +
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"\" ]");
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// This code produces the following output:
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// [ "(1+(2+(3+(4+(5+6)))))", "(2+(3+(4+(5+6))))", "(3+(4+(5+6)))", "(4+(5+6))", "(5+6)", "6" ]

‎Source/SuperLinq/ScanRight.cs

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@@ -5,28 +5,31 @@ namespace SuperLinq;
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public static partial class SuperEnumerable
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{
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/// <summary>
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/// Performs a right-associative scan (inclusive prefix) on a sequence of elements.
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/// This operator is the right-associative version of the
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/// <see cref="Scan{TSource}(IEnumerable{TSource}, Func{TSource, TSource, TSource})"/> LINQ operator.
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/// Performs a right-associative scan (inclusive prefix) on a sequence of elements. This operator is the
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/// right-associative version of the <see cref="Scan{TSource}(IEnumerable{TSource}, Func{TSource, TSource,
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/// TSource})"/> LINQ operator.
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/// </summary>
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/// <typeparam name="TSource">Type of elements in source sequence.</typeparam>
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/// <param name="source">Source sequence.</param>
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/// <typeparam name="TSource">
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/// Type of elements in source sequence.
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/// </typeparam>
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/// <param name="source">
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/// Source sequence.
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/// </param>
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/// <param name="func">
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/// A right-associative accumulator function to be invoked on each element.
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/// Its first argument is the current value in the sequence; second argument is the previous accumulator value.
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/// A right-associative accumulator function to be invoked on each element. Its first argument is the current
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/// value in the sequence; second argument is the previous accumulator value.
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/// </param>
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/// <returns>The scanned sequence.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is <see langword="null"/>.</exception>
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/// <exception cref="ArgumentNullException"><paramref name="func"/> is <see langword="null"/>.</exception>
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/// <example>
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/// <code><![CDATA[
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/// var result = Enumerable.Range(1, 5).Select(i => i.ToString()).ScanRight((a, b) => $"({a}+{b})");
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/// ]]></code>
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/// The <c>result</c> variable will contain <c>[ "(1+(2+(3+(4+5))))", "(2+(3+(4+5)))", "(3+(4+5))", "(4+5)", "5" ]</c>.
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/// </example>
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/// <returns>
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/// The scanned sequence.
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/// </returns>
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/// <exception cref="ArgumentNullException">
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/// <paramref name="source"/> or <paramref name="func"/> is <see langword="null"/>.
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/// </exception>
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/// <remarks>
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/// This operator uses deferred execution and streams its results.
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/// Source sequence is consumed greedily when an iteration of the resulting sequence begins.
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/// <para>
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/// This method is implemented by using deferred execution. However, <paramref name="source"/> will be consumed
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/// in it's entirety immediately when first element of the returned sequence is consumed.
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/// </para>
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/// </remarks>
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public static IEnumerable<TSource> ScanRight<TSource>(this IEnumerable<TSource> source, Func<TSource, TSource, TSource> func)
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{
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}
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/// <summary>
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/// Performs a right-associative scan (inclusive prefix) on a sequence of elements.
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/// The specified seed value is used as the initial accumulator value.
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/// This operator is the right-associative version of the
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/// <see cref="Scan{TSource, TState}(IEnumerable{TSource}, TState, Func{TState, TSource, TState})"/> LINQ operator.
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/// Performs a right-associative scan (inclusive prefix) on a sequence of elements. This operator is the
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/// right-associative version of the <see cref="Scan{TSource}(IEnumerable{TSource}, Func{TSource, TSource,
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/// TSource})"/> LINQ operator.
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/// </summary>
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/// <typeparam name="TSource">The type of the elements of source.</typeparam>
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/// <typeparam name="TAccumulate">The type of the accumulator value.</typeparam>
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/// <param name="source">Source sequence.</param>
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/// <param name="seed">The initial accumulator value.</param>
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/// <param name="func">A right-associative accumulator function to be invoked on each element.</param>
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/// <returns>The scanned sequence.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is <see langword="null"/>.</exception>
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/// <exception cref="ArgumentNullException"><paramref name="seed"/> is <see langword="null"/>.</exception>
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/// <exception cref="ArgumentNullException"><paramref name="func"/> is <see langword="null"/>.</exception>
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/// <example>
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/// <code><![CDATA[
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/// var result = Enumerable.Range(1, 4).ScanRight("5", (a, b) => string.Format("({0}/{1})", a, b));
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/// ]]></code>
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/// The <c>result</c> variable will contain <c>[ "(1+(2+(3+(4+5))))", "(2+(3+(4+5)))", "(3+(4+5))", "(4+5)", "5" ]</c>.
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/// </example>
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/// <typeparam name="TSource">
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/// Type of elements in source sequence.
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/// </typeparam>
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/// <param name="source">
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/// Source sequence.
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/// </param>
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/// <param name="func">
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/// A right-associative accumulator function to be invoked on each element. Its first argument is the current
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/// value in the sequence; second argument is the previous accumulator value.
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/// </param>
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/// <param name="seed">
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/// The initial accumulator value.
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/// </param>
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/// <returns>
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/// The scanned sequence.
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/// </returns>
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/// <exception cref="ArgumentNullException">
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/// <paramref name="source"/> or <paramref name="func"/> is <see langword="null"/>.
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/// </exception>
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/// <remarks>
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/// This operator uses deferred execution and streams its results.
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/// Source sequence is consumed greedily when an iteration of the resulting sequence begins.
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/// <para>
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/// This method is implemented by using deferred execution. However, <paramref name="source"/> will be consumed
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/// in it's entirety immediately when first element of the returned sequence is consumed.
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/// </para>
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/// </remarks>
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public static IEnumerable<TAccumulate> ScanRight<TSource, TAccumulate>(this IEnumerable<TSource> source, TAccumulate seed, Func<TSource, TAccumulate, TAccumulate> func)
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{

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