Updates README.

README.md

@@ -1,7 +1,44 @@
 # goast
 [![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://github.com/mtresnik/math/blob/main/LICENSE)
-[![version](https://img.shields.io/badge/version-1.0.0-blue)](https://github.com/mtresnik/math/releases/tag/v1.0)
+[![version](https://img.shields.io/badge/version-1.0.1-blue)](https://github.com/mtresnik/goast/releases/tag/v1.0.1)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-green.svg?style=flat-square)](https://makeapullrequest.com)
 <hr>
 
 Goast (pronounced Ghost) is a Go implementation of an AST and parser. This allows for strings to be converted to and from mathematical structures.
+
+
+### Sample Code
+
+In your project run:
+```
+go get github.com/mtresnik/goast@main
+```
+
+Your `go.mod` file should look like this:
+```go 
+module mymodule
+
+go 1.22.3
+
+require github.com/mtresnik/goast v1.0.1
+```
+
+
+Then in your go files you should be able to access the parser:
+```go 
+package main
+
+import (
+	"fmt"
+	"github.com/mtresnik/goast/pkg/operations/parser"
+)
+
+func main() {
+	operation, err := parser.ParseOperation("a * bc + 123 / sin(3.1415 * n) ^ log_(2, 8) - e")
+	if err != nil {
+		fmt.Println((*err).Error())
+		return
+	}
+	fmt.Println(operation.ToString())
+}
+```