README.md in rb-threadframe-0.33 vs README.md in rb-threadframe-0.34

@@ -1,7 +1,8 @@
 # rb-threadframe
 
-rb-threadframe gives introspection access for frames of a thread.
+rb-threadframe is a set of patches to Ruby 1.9.2 and a C extension
+that gives introspection access for method call frames.
 
 ## Requirements
 
 A patched version of Ruby 1.9.2 is needed.