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.

2006/borsanyi/README.md

@@ -16,8 +16,6 @@ STATUS: INABIAF - please **DO NOT** fix
 For more detailed information see [2006 borsanyi in bugs.md](/bugs.md#2006-borsanyi).
 
 
-
-
 ## To use:
 
 ```sh

2006/monge/README.md

@@ -53,7 +53,6 @@ as the number of iterations to perform.
 
 ### Alternate build:
 
-
 To use the default values, the same as [monge.c](monge.c), just do:
 
 

2006/night/README.md

@@ -23,7 +23,6 @@ keys.
 
 ### Alternate build:
 
-
 ```sh
 make alt
 ```

2006/sloane/README.md

@@ -45,7 +45,6 @@ Should you wish to see the original you may do so with the original code,
 
 ### Original build:
 
-
 ```sh
 make clobber all
 ```

2006/sykes1/README.md

@@ -16,8 +16,6 @@ STATUS: INABIAF - please **DO NOT** fix
 For more detailed information see [2006 sykes1 in bugs.md](/bugs.md#2006-sykes1).
 
 
-
-
 ## To use:
 
 ```sh

2006/toledo3/README.md

@@ -9,7 +9,6 @@ another that makes it text only. The author also provided a version that they
 tested with Windows.  See [alternate code](#alternate-code) below.
 
 
-
 ## To use:
 
 ```sh