move fix thanks a file, update top level html links, rename CONTRIBUTING.md

The fix thank you's have been moved from `README.md` to
`thanks-for-fixes.md`.

**WARNING**: Some mistakes may have been made in doing this.
We presume later changes by others will correct any issues.

The `CONTRIBUTING.md` was renamed `how-to-enter.md`.

A 3rd line of links was added to top level html such as
`contact.html`, `index.html`, `judges.html`, `winners.html`,
and `years.html`.

Improved blank line use in a number (but not all) `README.md` files.

1995/garry/README.md

@@ -4,6 +4,7 @@ Garry Glendown
 Germany
 <https://web.archive.org/web/20011221120305/http://insider.regio.net/~garry/>
 
+
 ## To build:
 
 ```sh
@@ -26,6 +27,7 @@ make all
 ./garry < README.md
 ```
 
+
 ### Alternate code:
 
 While it may not have been the intention of the author, the
@@ -33,11 +35,6 @@ judges noted that the C pre-processed version (with the `#include`s
 left intact) looked very much like a rat "dropping core".  See
 [garry.alt.c](garry.alt.c) and judge for yourself!
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed it
-so that it will compile with modern compilers. The problem was a missing `int` for
-the `f` variable. He felt it was important that it works because the layout does
-indeed look to him like a rat is dropping core. Thank you Cody!
-
 To use try:
 
 ```sh
@@ -53,6 +50,7 @@ Use `garry.alt` as you would `garry` above.
 The author was kind enough to provide a less obfuscated version of
 the source called [garry.fmt.c](garry.fmt.c).
 
+
 ## Author's remarks:
 
 This program is a file filter, designed to do environment-expansion and
@@ -91,6 +89,7 @@ $ echo '$TEST$' | ./garry
 Hello
 ```
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.