Fix tmp/format-headers.sh, format headers

The script had "s surrounding the git ls-files command which turned it
to a single file which of course is wrong.

Ran script again fixing many README.md files that had incorrect number
of blank lines for critical headers.

This will have to be done a final but a good number of files have been
corrected.

2014/endoh1/README.md

@@ -57,7 +57,6 @@ more than 1000 words.
 
 ## Author's remarks:
 
-
 ### Remarks
 
 You may want to use a large display with a very small terminal font.