cleanup winner README.md files

Fixed cases where there was a bad trailing backslash.

Improved a few cases where a code block was needed
to highlight some text.

Changed a few cases where a code block needed to
declared as, say, a sh code block.

Fixed a few cases where the winner information was not properly formatted.

Plus a few nits and clarifying text was added.

2013/hou/README.md

@@ -2,7 +2,7 @@
 
 Qiming Hou\
 <hqm03ster@gmail.com>\
-<http://www.houqiming.net>\
+<http://www.houqiming.net>
 
 
 ## To build: