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.

1992/adrian/README.md

@@ -6,6 +6,7 @@ University of Washington
 Mercer Island, WA 98040  
 US  
 
+
 ## To build:
 
 ```sh
@@ -13,20 +14,6 @@ make all
 ```
 
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) changed the location
-that it used `gets()` to be `fgets()` instead to make it safer and to prevent
-annoying warnings during compiling, linking or runtime (interspersed with the
-program's output). One might think that simply changing the gets() to fgets()
-(with stdin) would work but it did not because `fgets()` stores the newline and
-`gets()` does not. The code was relying on not having this newline. With
-`fgets()` the code `if(A(Y)) puts(Y);` ended up printing an extra line which
-made the generation of some files (like `adhead.c`) fail to compile (`gets()`
-does not store the newline but `fgets()` does). Why? There was a blank line
-after a `\` at the end of the first line of a macro definition!  Thus the code
-now first trims off the last character of the buffer read to get the same
-correct functionality but in a safe way. Thank you Cody for your assistance!
-
-
 ## Try:
 
 ```sh
@@ -49,6 +36,7 @@ about regular expressions and state machines.
 
 NOTE: Some compilers have had trouble optimizing this entry.
 
+
 ## Author's remarks:
 
 ### ADrian's GREP (adgrep)
@@ -259,6 +247,7 @@ introducing extra lines into one of the programs.
 The program will produce at least one warning and possible several
 when compiled depending on the compiler.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.