Rearranges documentation sections for clarity.

Reorganizes the README to improve readability by grouping
related documentation sections together, specifically moving
the full API documentation and AI usage sections to be
adjacent to their corresponding references.

Author: goswinr

README.md

@@ -20,6 +20,17 @@ With nicer IndexOutOfRangeExceptions that include the bad index and the actual s
 
 - Extensive Tests running on both .NET and JS
 
+
+### Full API Documentation
+
+[goswinr.github.io/Str](https://goswinr.github.io/Str/reference/str.html)
+
+### Use of AI and LLMs in the project
+All core function are are written by hand to ensure performance and correctness.<br>
+However, AI tools have been used for code review, typo and grammar checking in documentation<br>
+and to generate not all but many of the tests.
+
+
 ### Usage
 Just open the module
 
@@ -282,15 +293,6 @@ sb.Contains "hello"  // true
 sb.IndexOf ","       // 5
 ```
 
-### Full API Documentation
-
-[goswinr.github.io/Str](https://goswinr.github.io/Str/reference/str.html)
-
-### Use of AI and LLMs
-All core function are are written by hand to ensure performance and correctness.<br>
-However, AI tools have been used for code review, typo and grammar checking in documentation<br>
-and to generate not all but many of the tests.
-
 ### Tests
 All Tests run in both javascript and dotnet.
 Successful Fable compilation to typescript is verified too.