fix many internal links

Fixed a number of internal links that need to
go to the GitHub site.

Ran `make www` to perform the above.

2011/toledo/index.html

@@ -381,7 +381,7 @@ Location: <a href="../../location.html#MX">MX</a> - <em>United Mexican States</e
 <p>If you have X11 installed:</p>
 <pre><code>    make</code></pre>
 <p>There are two alternate versions, <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/toledo.alt.c">one that lets you reconfigure the
-controls and size</a> and <a href="toledo.alt2.c">another that should work for
+controls and size</a> and <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/toledo/toledo.alt2.c">another that should work for
 Windows</a>. See <a href="#alternate-code">Alternate code</a> below.</p>
 <h2 id="to-use">To use:</h2>
 <pre><code>    ./toledo</code></pre>