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.

2013/hou/README.md

@@ -1,4 +1,4 @@
-## To build:
+%%REPO_URL%%/## To build:
 
 ``` <!---sh-->
     make all
@@ -137,7 +137,7 @@ don't have to worry about conflicts.
 * [hou.c](%%REPO_URL%%/2013/hou/hou.c) uses compression to get around the size limit. The compression
 fully complies with the rules and the guidelines (at least the portion that
 shows up in `grep` "size limit"). Please see the [Self-imposed
-restrictions](self-imposed-restrictions) section below for more details.
+restrictions](#self-imposed-restrictions) section below for more details.
 * `hou` does not terminate (as suggested by the second line of rule 6).
 
 

2013/hou/doc/example.html

@@ -587,7 +587,7 @@ editing program, you need to convert the RGB values from 0..255 to 0..1, and
 then put here its <em>square</em>. Only after squaring you get your real, lively color
 in the output image, as opposed to something dull and gray. You need to do the
 same if you use a RGB texture. And yes, that is the what the second <code>sqrt(3)</code> in
-<a href="../a.c">a.c</a> is for.</p>
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/a.c">a.c</a> is for.</p>
 <p>Going beyond colors, to define a shiny or dull surface one needs more maths, and
 optics. The jargon for this is <code>BRDF</code> (Bidirectional Reflectance Distribution
 Function) importance sampling. Let’s continue to function <code>o</code>.</p>

2013/hou/doc/example.md

@@ -312,7 +312,7 @@ editing program, you need to convert the RGB values from 0..255 to 0..1, and
 then put here its *square*. Only after squaring you get your real, lively color
 in the output image, as opposed to something dull and gray. You need to do the
 same if you use a RGB texture. And yes, that is the what the second `sqrt(3)` in
-[a.c](../a.c) is for.
+[a.c](%%REPO_URL%%/2013/hou/a.c) is for.
 
 Going beyond colors, to define a shiny or dull surface one needs more maths, and
 optics. The jargon for this is `BRDF` (Bidirectional Reflectance Distribution

2013/hou/index.html

@@ -377,7 +377,7 @@ Location: <a href="../../location.html#CN">CN</a> - <em>People’s Republic of C
 <!-- START: this line starts content for HTML phase 21 by: bin/pandoc-wrapper.sh via bin/md2html.sh -->
 
 <!-- BEFORE: 1st line of markdown file: 2013/hou/README.md -->
-<h2 id="to-build">To build:</h2>
+<p>https://github.com/ioccc-src/temp-test-ioccc/blob/master/## To build:</p>
 <pre><code>    make all</code></pre>
 <h3 id="bugs-and-misfeatures">Bugs and (Mis)features:</h3>
 <p>The current status of this entry is:</p>
@@ -468,7 +468,7 @@ don’t have to worry about conflicts.</li>
 <ul>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2013/hou/hou.c">hou.c</a> uses compression to get around the size limit. The compression
 fully complies with the rules and the guidelines (at least the portion that
-shows up in <code>grep</code> “size limit”). Please see the <a href="self-imposed-restrictions">Self-imposed
+shows up in <code>grep</code> “size limit”). Please see the <a href="#self-imposed-restrictions">Self-imposed
 restrictions</a> section below for more details.</li>
 <li><code>hou</code> does not terminate (as suggested by the second line of rule 6).</li>
 </ul>