Merge pull request #464 from Stone-Red-Code/update-C#-resources

Update c# resources

src/content/resources/language/c-sharp/access-modifiers.md

@@ -1,11 +1,13 @@
 ---
 authors:
   - "Stone_Red#0001"
-created_at: 2021/08/07
+created_at: 2023/09/16
 title: Access Modifiers
 external_resources:
   - text: Access Modifiers
-    href: "https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/access-modifiers"
+    href: "https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/access-modifiers"
+  - text: Accessibility Levels
+    href: "https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/accessibility-levels"
 ---
 
 ## Availible access modifiers
@@ -16,6 +18,7 @@ external_resources:
 - **internal:** The type or member can be accessed by any code in the same assembly, but not from another assembly.
 - **protected internal:** The type or member can be accessed by any code in the assembly in which it's declared, or from within a derived class in another assembly.
 - **private protected:** The type or member can be accessed only within its declaring assembly, by code in the same class or in a type that is derived from that class.
+- **file** The declared type is only visible in the current source file. File scoped types are generally used for source generators.
 
 ## Why not use _public_ for everything?
 

src/content/resources/language/c-sharp/intro.md

@@ -3,18 +3,20 @@ authors:
   - "Stone_Red#0001"
   - "HueByte#0001"
   - "sfn#3771"
-  - "Draxis#1559"
-created_at: 2021/08/07
+  - "Draxis#6666"
+created_at: 2023/09/16
 title: C#
 ---
 
 ###### Documentation
 
 - [C# docs](https://docs.microsoft.com/en-us/dotnet/csharp/)
+- [What's new?](https://learn.microsoft.com/en-us/dotnet/csharp/whats-new)
 
 ###### Tutorials
 
 - [Introduction to C#](https://docs.microsoft.com/en-us/dotnet/csharp/tutorials/intro-to-csharp/)
+- [A tour of the C# language](https://learn.microsoft.com/en-us/dotnet/csharp/tour-of-csharp/)
 - [C# Fundamentals Development for Absolute Beginners:](https://channel9.msdn.com/Series/CSharp-Fundamentals-for-Absolute-Beginners)
 - [AngelSix's C# Beginner's course](https://www.youtube.com/watch?v=STw363BHviY&list=PLrW43fNmjaQXhWOKalftye87ObZA-xNIJ)