update rules and guideline headers

Harmonized and improve the headers that are prepended
to the rules and guidelines given the IOCCC state.

Attempted to make the headers that are prepended
to the rules and guidelines more consistent.

Make reference to, where applicable, FAQs
about feedback and questions in those headers.

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

inc/rules.judging.hdr

@@ -4,10 +4,14 @@
 
 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
+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).
+of [who won the IOCCC](../years.html).
+
+**HINT to mastodon users**: You may wish to refresh the [@IOCCC
+mastodon feed](https://fosstodon.org/@ioccc) page and/or mastodon
+app from time to time to view IOCCC mastodon updates.
 
 
 # The IOCCC is closed to new submissions
@@ -15,8 +19,5 @@ for [who won the IOCCC](../years.html).
 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.
-
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