Add content to generation README

src/babel/generation/README.md

@@ -1,3 +1,16 @@
 ## Generation
 
-This is the Generation directory.
+Here is Babel's code generator, here you'll find all of the code to turn an AST
+back into a string of code.
+
+[TBD: To Be Documented:]
+
+- Code Generator
+- Buffer
+- Source Maps
+  - Position
+- Printer
+- Code Style
+  - Whitespace
+  - Parenthesis
+- Generators