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/sloane/README.md

@@ -3,22 +3,13 @@
 Andy Sloane  
 US  
 
+
 ## To build:
 
 ```sh
 make
 ```
 
-[Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed this entry to
-work with clang which is stricter on the type of args to main(). Curiously
-although clang requires the types of args to be strictly correct it allows for
-only one arg which he made it as the second arg was not used and this allows for
-a closer match to the original format of the entry. He also made sure that the
-Makefile links in `libm` as not all systems do this by default. Since the author
-suggested that the lack of certain `#include`s might break the program in some
-systems he added `-include ...` to the Makefile as well. Thank you Cody for your
-assistance!
-
 
 ## To run:
 
@@ -40,10 +31,10 @@ movements. See the alternate code section below.
 echo "Do or do not. There is no try."
 ```
 
+
 ### Alternate code:
 
-The alternate version, provided by [Cody Boone
-Ferguson](/winners.html#Cody_Boone_Ferguson), uses `usleep()` so one can enjoy
+The alternate version uses `usleep()` so one can enjoy
 the entry with modern systems and which will not be too stimulating for those
 who have a problem with fast moving text (like himself). It uses the `Z` macro
 as the parameter to `usleep()` which you can override. The default is
@@ -62,13 +53,13 @@ make CDEFINE="-DZ=70000" clobber alt
 
 Use `sloane.alt` as you would `sloane` above.
 
-Thank you Cody!
 
 ## Judges' Comments:
 
 Looks almost good enough to eat, dunnit?  I suppose you could argue that,
 at first blush, this looks like a self-reproducing program.
 
+
 ## Author's remarks:
 
 This program doesn't require any special build options, other than that it
@@ -123,6 +114,7 @@ In increasing order of difficulty:
  - How is the "IOCCC 2006" logo encoded?  Can you put something else in its
    place?  Can you find a smaller encoding?
 
+
 ## Copyright and CC BY-SA 4.0 License:
 
 This file is Copyright (c) 2023 by Landon Curt Noll.  All Rights Reserved.