Update README.md

Add verbiage to indicate under what circumstances the script will detect a book that gives a skill.

Author: kjack9

README.md

@@ -1,6 +1,8 @@
 # SynBookSmart
 A configurable Synthesis patcher to label books that teach skills.
 
+This will work on any book from any mod that uses the "Teaches Skill" DATA flag.
+
 ## Settings
 All settings can be configured inside the Synthesis app.