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.

1996/eldby/README.md

@@ -47,6 +47,7 @@ If however you wish to see the original version in modern systems, try:
 make all
 ```
 
+
 ### Original use:
 
 Use `./eldby` as you would `./eldby.alt` above.

1996/gandalf/README.md

@@ -37,7 +37,6 @@ BTW: it is perilous to 'try' the patience of
 [Gandalf](https://www.glyphweb.com/arda/g/gandalf.html). Go ahead, 'try' it! :-)
 
 
-
 ## Judges' remarks:
 
 For misleading C pre-processor output, try:

1996/westley/README.md

@@ -18,7 +18,6 @@ alt version.
 ```
 
 
-
 ### Try:
 
 ```sh
@@ -32,8 +31,8 @@ The original version had a display problem in modern systems which somewhat
 affected the usability of the program. This alternate code, the original, is
 provided, to show the differences.
 
-### Alternate build:
 
+### Alternate build:
 
 ```sh
 make alt