Update README.md

Author: steven-ray

README.md

@@ -1,3 +1,7 @@
+# Mtree fork
+
+This is a fork of the modular_tree Blender add-on by Maxime Herpin.  This fork was created to fix compatibility issues with recent versions of Blender (3.1 & 3.2) as activity in the original repo appears to have stalled out for a bit.
+
 # Mtree
 
 Mtree (previously Modular Tree) is a library for making 3d trees. It comes as an addon for blender but the c++ library can be used separately.
@@ -69,4 +73,4 @@ The Mtree library is under the [MIT] license.
 [Cmake]: https://cmake.org/
 [addon bundling script]: ./.github/scripts/setup_addon.py
 [GPLv3]: https://www.gnu.org/licenses/gpl-3.0.en.html
-[MIT]: https://choosealicense.com/licenses/mit/\
+[MIT]: https://choosealicense.com/licenses/mit/\