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.

2014/vik/README.md

@@ -6,18 +6,21 @@ US
 <https://www.vik.cc/>  
 <http://danielvik.com/>  
 
+
 ## To build:
 
 ```sh
 make
 ```
 
+
 ## To run:
 
 ```sh
 ./prog > foo.c
 ```
 
+
 ## Try:
 
 ```sh
@@ -26,6 +29,7 @@ echo 'Want to hear me beep?' | ./prog > audio_file.raw
 echo 'No. I want chocolate!' | ./prog | mplayer -demuxer rawaudio -
 ```
 
+
 ## Judges' remarks:
 
 This program sets a new tone for obfuscation. But do you understand
@@ -44,9 +48,6 @@ might speak to your coding style? If not, then perhaps:
 
 might help? :-)
 
-NOTE: In 2020 [Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) found a
-minor bug when working on his [Enigma machine entry](../../2020/ferguson2); see
-his [README.md](../../2020/ferguson2/README.md) for details (search for `vik`).
 
 ## Author's remarks:
 
@@ -100,6 +101,7 @@ However I found some man made recordings on that decode reasonable well.
 If a recording doesn't decode, you could try to pre-process the input with a
 narrow bandpass filter on the frequency of the transmission.
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.