Truly complete 2024/ferguson1 and litmus test

The truly complete part is a reference to commit
ad622a5354. This also means that prog.c
need never be updated again, which was the entire point of that commit
that fell just short of the mark.

Fixed links in obfuscation.html.

Added litmus test to explain how I actually tested the program with all
the jumps.

Fixed typo in data file that I discovered during the above litmus test.

Fixed other files as well.

The .entry.json had a minor mod too, to better reflect what a file
actually is.

Rebuilt obfuscation.html and index.html.

Added target to Makefile which was also used during testing (this might
be explained in the obfuscation.html).

2024/ferguson1/deobfuscation.html

@@ -503,8 +503,8 @@ flood of the message each turn).</li>
 <li>h: I believe this is if you were injured and could afford the doctor.</li>
 <li>c: hit blizzard.</li>
 <li>X: passed South Pass.</li>
-<li>i: been poisoned; you will be dead shortly (sorry - that’s what happens when
-you have a pact with the devil!).</li>
+<li>i: about to be strangled to death by the Flying Spaghetti Monster after
+indulging in too much spaghetti.</li>
 <li>g: how many limbs you’ve had to cut off (surgeon’s cut edition)</li>
 <li>t: temporary array for purchasing at forts.</li>
 <li>u: temporary unsigned int to iterate through array <code>t</code> (and maybe other