move archive files under archive/historic

Adjusted links and references to old archive files
to use the `archive/historic/` tree.

TODO: Build compressed tarballs for winning entries,
individual years, and the entire winning set under `archive/ioccc/`.

archive/historic/README.md

@@ -7,12 +7,15 @@ tarballs represent the "_released_" IOCCC winning source,
 as modified by the IOCCC judges and winning authors
 as of [2020 Dec 28](https://web.archive.org/web/20201228005211/https://www.ioccc.org/).
 
-Yuo smight wish to note that the `archive/archive-all.tar.bz2` file
+You might wish to note that the
+[archive/historic/archive-all.tar.bz2](/archive/historic/archive-all.tar.bz2) file
 found in this archive produces a somewhat newer version of the
 released IOCCC source for 1984, 1985, 1986 and 1987 in that the
-winners for those years were still found in single year directories.
-Thus the `archive/archive-1984.tar.bz2`, `archive/archive-1985.tar.bz2`,
-`archive/archive-1986.tar.bz2`, and `archive/archive-1987.tar.bz2`
+winners for those years were still found in single year directories.  Thus the
+[archive/historic/archive-1984.tar.bz2](/archive/historic/archive-1984.tar.bz2),
+[archive/historic/archive-1985.tar.bz2](/archive/historic/archive-1985.tar.bz2),
+[archive/historic/archive-1986.tar.bz2](/archive/historic/archive-1986.tar.bz2),
+[archive/historic/archive-1987.tar.bz2](/archive/historic/archive-1987.tar.bz2),
 zip2 compressed tarballs represent a somewhat earlier form of the
 "_released_" IOCCC winning source for those years.
 This a somewhat earlier set of IOCCC winning source may