merge

README.md

@@ -11,8 +11,15 @@
 - conv-exe: a grammar format utility for conversion of a readable grammar (.lgrm) format into the Haskell data format (.grm)
 - Examples: 
   - parser-exe: an arithmetic parser
+  - ambiguous-exe: an arithmetic parser with the ambiguous grammar but backed by precedence attributes
+  - error-exe: a demo for error recovery by an interplay between a lexer and a parser through a monadic interface
   - syncomp-exe: a syntax completion server for Emacs
 
+### Applications using YAPB:
+  - Microsoft SmallBasic parser: https://github.com/kwanghoon/sbparser
+  - Polyrmorphic RPC calculus parser: https://github.com/kwanghoon/polyrpc
+  - C11 parser: https://github.com/kwanghoon/c11parser
+
 ### Download, build, and test
 ~~~
   $ git clone https://github.com/kwanghoon/yapb