Make all 1985 entries compile under linux

Unfortunately some entries will either not compile under macOS or not
run correctly. We used a patch from Yusuke Endoh for
1985/applin/applin.c. Thank you Yusuke! This is actually the entry that
does not work right under macOS but it does under linux.

Update main README.md with links.

Update a number of other README.md files with typos and other fixes and
improvements (including fixing invocations and adding a 'Try:' section
to match later year README files).

Update various Makefiles to add notes and to make some entries compile
(in some cases, those that require -traditional-cpp, they will not
compile under clang and we note this).

Update archive/archive-1985.tar.bz2. Why? Because the purpose of the
archive/ files are for the original files and some of the files in there
were not original. See the files 1985/lycklama/lycklama.orig.c and
1985/shapiro/shapiro.orig.c which in the tarball do not have the .orig
added to the name.

1985/sicherman/README.md

@@ -26,7 +26,7 @@ on a line.  Now enter the letters 'n' thru 'z'.  But to borrow a quote
 from Richard Stallman: If you think you understand what this code
 does, then you don't, so read it again!  Explain why:
 
-	sicherman < sicherman.c | sicherman | diff - sicherman.c
+	./sicherman < sicherman.c | ./sicherman | diff - ./sicherman.c
 
 results in diff reporting a difference on some machines.