Add initial disclaimer to the main web page

index.html

@@ -13,6 +13,34 @@
 <CENTER><a HREF="2011/zucker/hint.html"><IMG ALT="IOCCC" SRC="png/ioccc.png"></a><br><FONT SIZE="1">Logo by winner <a href="2011/zucker/hint.html">Matt Zucker</a></font></CENTER><BR>
 <CENTER><FONT SIZE="6"><I>The International Obfuscated C Code
 Contest </I></FONT></CENTER><BR>
+
+<HR>
+<CENTER><FONT SIZE="6"><I>THIS IS AN EXPERIMENTAL IOCCC WEB SITE </I></FONT></CENTER>
+<P>
+<H2>IMPORTANT: This is NOT the official IOCCC web site!</H2>
+<P>
+Please visit
+<A HREF="https://www.ioccc.org/index.html">www.ioccc.org</A>
+for the official IOCCC web.
+<P>
+Please do <B>NOT</B> bookmark nor link to this
+<A HREF="https://ioccc-src.github.io/temp-test-ioccc/">experimental web site</A>:
+<BLOCKQUOTE>
+<A HREF="https://ioccc-src.github.io/temp-test-ioccc/">https://ioccc-src.github.io/temp-test-ioccc/</A>
+</BLOCKQUOTE>
+<P>
+This test web tree is part of the
+<A HREF="https://github.com/ioccc-src/temp-test-ioccc">temp-test-ioccc</A> GitHub repo:
+<BLOCKQUOTE>
+<A HREF="https://github.com/ioccc-src/temp-test-ioccc">https://github.com/ioccc-src/temp-test-ioccc</A>
+</BLOCKQUOTE>
+<P>
+This web site will be undergoing major changes, so expect many broken links, typos and other problems.
+If you wish to recommend changes (understanding that things may be rapidly changing out from under your copy),
+then consider making pull requests against the
+<A HREF="https://github.com/ioccc-src/temp-test-ioccc">temp-test-ioccc</A> GitHub repo.
+<HR>
+
 <CENTER><P>[ <A HREF="judges.html">The judges</A> |
 <B>IOCCC home page</B> |
 <A HREF="index.html#enter">How to enter</A> |