Update header of guidelines.md and rules.md based on status.json

In a few cases, the error message related to a file or directory
test was corrected.

Changed `bin/gen-sitemap.sh` VERSION from "1.3.6 2024-04-13"
to "1.3.7 2024-04-14".

Changed `bin/gen-year-index.sh` VERSION from "1.0.6 2024-04-13"
to "1.0.7 2024-04-14".

Changed `bin/untar-year.sh` VERSION from "1.0.1 2024-04-13"
to "1.0.2 2024-04-14".

Updated `bin/gen-status.sh` to change the header of `next/guidelines.md`
and `next/rules.md` to match the _contest_status_ in `status.json`.

Moved `make gen_top_html` after `make gen_status` in `make www`
and in `make quick_www` rules in the top Makefile.

Changed `bin/gen-status.sh` VERSION from "1.2.1 2024-04-13"
to "1.3 2024-04-14".

Fixed the DESCRIPTION for `next/guidelines.html`.

Run `make www` to perform the above and test under macOS.

inc/rules.judging.hdr

@@ -0,0 +1,22 @@
+<!-- START: this line starts content from: inc/rules.judging.hdr -->
+
+# The rules for the IOCCC that just closed
+
+These rules are for the current IOCCC that is no longer open for new submissions.
+
+See the [IOCCC news](../news.html) and well as the [IOCCC
+Mastodon](https://fosstodon.org/@ioccc) feed for updates
+on the IOCCC judging process as well as for the announcement
+for [who won the IOCCC](../years.html).
+
+
+# The IOCCC is closed to new submissions
+
+The [IOCCC judges](judges.html) are in the process of judging the submissions they received
+the IOCCC was open.
+
+Watch the [@IOCCC mastodon feed](https://fosstodon.org/@ioccc), as well as the
+[IOCCC news](news.html) page for updates.
+
+<!-- END: the next line ends content from: inc/rules.judging.hdr -->
+<!-- This is the last line modified by the tool: bin/gen-status.sh -->