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.

2006/toledo2/README.md

@@ -5,26 +5,22 @@ Familia Toledo
 Mexico  
 <https://nanochess.org>  
 
+
 ## To build:
 
 ```sh
 make
 ```
 
+
 ## To run:
 
 ```sh
 ./toledo2
 ```
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed a segfault in
-this program which was making it fail to work under macOS - it did not seem to
-be a problem under linux, at least not fedora. The problem was wrong variable
-types - implicit `int`s instead of `FILE *`s. It now works with both macOS and
-linux. Thank you Cody!
-
 To end execution press `ctrl-z`. As mentioned in the author's remarks and in the
-below section, it is supposed to crash on termination though Cody noted this
+below section, it is supposed to crash on termination though some noted this
 does not seem to happen in macOS. He asks ironically: 'if it's supposed to crash
 and it does not crash is it actually a bug or is it a feature? :-)'
 
@@ -35,6 +31,7 @@ By design this program is supposed to crash on termination.
 You must type in caps (except in strings) and this program is indeed
 case-sensitive.
 
+
 ## Try:
 
 ```sh
@@ -60,6 +57,7 @@ remarks.
 
 See also [bugs.md](/bugs.md) for more details.
 
+
 ## Judges' remarks:
 
 We're impressed! Last year, it was a
@@ -80,6 +78,7 @@ file referred in the author's remarks); walking in a maze of
 twisty little passages all alike is easier than understanding
 the code!
 
+
 ## Author's remarks:
 
 This program emulates a complete [Intel(r)
@@ -260,6 +259,7 @@ The BIOS is tailor made for this emulator, and helps to simplify it.
   programmer can develop its C programs using
   only one function.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.