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.

2005/anon/README.md

@@ -2,6 +2,7 @@
 
 Anonymous
 
+
 ## To build:
 
 ```sh
@@ -11,12 +12,14 @@ make
 NOTE: if your shell does not support `stty` then see the alternate version
 described in the section below.
 
+
 ## To run:
 
 ```sh
 ./anon x y [z]
 ```
 
+
 ## Try:
 
 ```sh
@@ -24,13 +27,10 @@ described in the section below.
 ./anon 3 3 3
 ```
 
+
 ### Alternate version:
 
-The author stated that if `stty` does not work right on your system you can
-compile it differently so that the program does not use `stty`.
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) set this up so that one
-need not update the [Makefile](Makefile). There's a fun thing here that will be
-mentioned below as well. Thank you Cody! To use this version:
+To use this version:
 
 ```sh
 make alt
@@ -69,6 +69,7 @@ puzzle to a whole new dimension!  While you puzzle out this puzzle, we invite
 you to take a good LONG look how and WHY `main()` is recursively called and how
 the runtime stack is used.
 
+
 ## Author's remarks:
 
 ### ABOUT THE GAME ITSELF
@@ -509,6 +510,7 @@ necessitated the removal of this code. And besides, the game is more addictive
 when it's sometimes unsolvable. Especially when it taunts the user with a
 smiley. :-)
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.