fix open state, update sitemap

next/guidelines.md

@@ -1,15 +1,12 @@
-<!-- START: this line starts content from: inc/guidelines.pending.hdr -->
+<!-- START: this line starts content from: inc/guidelines.open.hdr -->
 
-# WARNING: These guidelines are TENTATIVE
+# Official IOCCC guidelines
 
-One might think of them as a **beta** release for the IOCCC
-that is about to open.
+These guidelines are **OFFICIAL**.
 
-**IMPORTANT**: All **tentative** [rules](rules.html) and [guidelines](guidelines.html)
-are subject to change by the [IOCCC judges](../judges.html) at any time.
-See both the [IOCCC news](../news.html) and the [IOCCC
-Mastodon](https://fosstodon.org/@ioccc) feed as _sometimes_ the
-[IOCCC judges](../judges.html) _mention_ changes there.
+Unless some significant problem turns up (such as a need to delay
+in when the IOCCC will close, or some major bug is discovered) they
+will remain **OFFICIAL** for this IOCCC.
 
 See our
 FAQ on "[rules, guidelines, tools feedback](../faq.html#feedback)"
@@ -18,16 +15,23 @@ FAQ on "[about asking questions](../faq.html#question)"
 about these guidelines. You might also find the FAQ in general useful, especially the
 FAQ on "[how to enter the IOCCC](../quick-start.html#enter)".
 
+**SUGGESTION**: Watch both the [IOCCC news](../news.html) and the
+[IOCCC Mastodon](https://fosstodon.org/@ioccc) feed for the latest news
+about any _mentions_ changes.
 
-# The IOCCC is pending
+**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.
 
-While the IOCCC is not open yet, there is a tentative opening date for the next IOCCC.
 
-Comments and suggestions on these preliminary guidelines are welcome.  See the
-[FAQ](../faq.html#feedback) for how to suggest, correct or provide feedback
-about these guidelines.
+# The IOCCC open for submissions
 
-<!-- END: the next line ends content from: inc/guidelines.pending.hdr -->
+See "[FAQ - How may I enter the IOCCC](https://www.ioccc.org/quick-start.html#enter)"
+for information on how to register for the IOCCC, how to create a proper
+bzip2 compressed tarball of your submission, and how to upload your
+bzip2 compressed tarball to the IOCCC submit server.
+
+<!-- END: the next line ends content from: inc/guidelines.open.hdr -->
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 # 28th International Obfuscated C Code Contest Official Guidelines