change references to post Great Fork Merge URLs

In preparation for the **Great Fork Merge**:

We change references for the repo from
`https://github.com/ioccc-src/temp-test-ioccc`
to `https://github.com/ioccc-src/winner`.

We change references for the web site from
`https://ioccc-src.github.io/temp-test-ioccc`
to `https://github.com/ioccc-src/winner`.

NOTE: There will be a **LOT OF LINKS BROKEN**, because of the changes
to the REPO URL and the WEBSITE URL, until the **Great Fork Merge**
updates the+[official IOCCC website](https://www.ioccc.org).

2000/index.html

@@ -416,7 +416,7 @@
   <a class="Left" href="../years.html">&uarr; top &uarr;</a>
   <a class="Left" href="../2001/index.html">2001 &rarr;</a>
   <a class="Right" href="#inventory">Inventory</a>
-  <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2000%2Findex.html">&#x2713;</a>
+  <a class="Right" href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2000%2Findex.html">&#x2713;</a>
 </div>
 
 <!-- END: this line ends content from: inc/navbar.year.mid.html -->
@@ -595,7 +595,7 @@ Jump to: <a href="#">top</a>
 
     <div id="coda"><h3>Coda</h3>
 	<p>
-	<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fioccc-src.github.io%2Ftemp-test-ioccc%2F2000%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
+	<a href="https://validator.w3.org/nu/?doc=https%3A%2F%2Fwww.ioccc.org%2F2000%2Findex.html" rel="nofollow">Nu HTML check this web page</a><br>
 	<a href="#top">Jump to top</a> <a href="#content">Jump to Content</a> <a href="#inventory">Jump to Inventory</a><br>
 	</p>
     </div>