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.

1995/savastio/README.md

@@ -53,7 +53,9 @@ containing 1000 buckets of 4-digit integers.  To further confuse
 matters, the buckets are arranged backwards in the block.  For example,
 the number 8347108947139478934713847134 is represented as:
 
-       7134 1384 9347 3947 9471 7108 834
+```
+7134 1384 9347 3947 9471 7108 834
+```
 
 ### Platform limitations