update readme

Author: wumpz

README.md

@@ -47,8 +47,8 @@ Also I would like to know about needed examples or documentation stuff.
 ## Extensions in the latest SNAPSHOT version 0.9.8
 
 * support **FOR UPDATE WAIT**
-* support for simple expressions within case when
-* rewrite of SelectBody - production, reduce of needed lookaheads results in huge parser performance improvement
+* support for simple expressions within **case when**
+* rewrite of **SelectBody** - production, reduce of needed lookaheads results in huge parser performance improvements at least in some cases
   * please test it due to possible changes in the parse tree
 
 ## Extensions of JSqlParser releases