create release candidate for 3.13.6 and update README

Author: FelixTheC

README.md

@@ -12,10 +12,17 @@
 [![](https://img.shields.io/pypi/dm/strongtyping.svg)](https://pypi.org/project/strongtyping/)
 
 # Strong Typing
+
 <p>Decorator which <b>checks at Runtime</b> whether the function is called with the correct type of parameters.<br> 
 And <b><em>raises</em> TypeMisMatch</b> if the used parameters in a function call where invalid.</p>
 
 # This is the release for Python-3.13 and above
+
 - If you need a different version please checkout the release Tags 2.\*.*
 
+## Performance boost with mypyc
+
+- Since __3.13.6__ `mypyc` is used to compile the core logic code.
+- This results in a significant performance boost from around __5x faster__, especially for large containers.
+
 ## [Docs have been moved to 'readthedocs'](https://strongtyping.readthedocs.io/en/latest/#the-solution)

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "strongtyping"
-version = "3.13.6a"
+version = "3.13.6"
 authors = [
     { name = "FelixTheC", email = "fberndt87@gmail.com" },
 ]