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.

1988/reddy/README.md

@@ -19,14 +19,12 @@ char *(*(fun[16])();
 char *(*(*(*(*(*fun[32])))))();
 ```
 
-What happens if you input:
+What happens if you input, and what you do about it?
 
-```
+```c
 char *(*(*(*(*(*fun[32])))))());
 ```
 
-? What can you do about it?
-
 
 ## Judges' remarks: