Clarify fork in package description

Author: thegamecracks

setup.py

@@ -129,7 +129,7 @@ def build_extension(self, ext: CMakeExtension) -> None:
 
 setup(
     name="LinkPython-extern",
-    description="Python wrapper for Ableton Link",
+    description="A fork of the LinkPython wrapper for Ableton Link",
     long_description=open("README.md").read(),
     long_description_content_type="text/markdown",
     version="1.0.0",