Added small note. graph_fitting needs some tlc.
-rw-r--r-- 18047 LICENSE
-rw-r--r-- 6753 README.md
drwxr-xr-x - corpus_tools
drwxr-xr-x - learning_productions
drwxr-xr-x - lib
drwxr-xr-x - rule_machine
drwxr-xr-x - supergrammar
drwxr-xr-x - tree_learning