Add try scripts to 2018/ferguson + formatting

The try.sh and try.alt.sh scripts are respectively for the entry and the
alt code. There is a joke in them that is based on what the judges
originally suggested one try.

The weasel.man page was deleted. Instead weasel.1 has had the FILES
section removed (which caused some confusion in another way with
another winner of that year). The spec file will have to be tested again
another time.

I did NOT format / typo check the README.md file. Too much to do for now
and since it's mine I can do it any other time. I'd like to get through
the rest of the entries.

Thus this should complete (for now?) 2018/ferguson.

2018/ferguson/weasel.1

@@ -135,40 +135,6 @@ was disabled as above). Observe that here the \fB-r5-q\fP doesn't prevent the
 quiet output from being enabled; on the other hand the options
 \fB-r5- -q -- -r10\fP would!
 .RE
-.SH FILES
-\fI/usr/src/weasel/weasel.c\fP
-.RS
-The source code to the \fBweasel\fP program.
-.RE
-.PP
-\fI/usr/src/weasel/weasel.alt.c\fP
-.RS
-The source code to the \fBweasel.alt\fP program.
-.RE
-.PP
-\fI/usr/src/weasel/Makefile\fP
-.RS
-The Makefile to compile the source code should you wish to compile the
-source code files.
-.RE
-.PP
-\fI/usr/src/weasel/test.sh\fP
-.RS
-A test script that demonstrates the weasel program (this script is used
-by \fBmake test\fP) by reading in strings, one at a time, and invoking
-the program with that string as the target chromosome. See the
-\fIREADME.md\fP or \fIhint.html\fP for more details on using this script.
-.RE
-.PP
-\fI/usr/src/weasel/test-strings.txt\fP
-.RS
-The data file the \fItest.sh\fP script reads strings from.
-.RE
-.PP
-\fI/usr/share/doc/weasel/weasel.html\fP, \fI/usr/share/doc/weasel/weasel.markdown\fP
-.RS
-More detailed documentation.
-.RE
 .SH HINTS
 The IOCCC judges in 2018 asked the following in the guidelines:
 .RS