fix markdown links to various image files that use a %%TOKEN%%

2011/akari/README.md

@@ -76,7 +76,7 @@ properly.
 * ASCII art (with end of lines in LF bytes only, not CR-LF)
 
 This is useful for decoding some curiously interlaced images, such as
-the included [example.ppm](%%REPO_URL%%/2011/akari/example.ppm).
+the included [example.ppm](example.ppm).
 
 Anything that is not parsable as `PGM` or `PPM` will be downsampled as
 ASCII art.  Since the source code is formatted as ASCII art, it's only

2011/akari/index.html

@@ -443,7 +443,7 @@ properly.
 <li>ASCII art (with end of lines in LF bytes only, not CR-LF)</li>
 </ul>
 <p>This is useful for decoding some curiously interlaced images, such as
-the included <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2011/akari/example.ppm">example.ppm</a>.</p>
+the included <a href="example.ppm">example.ppm</a>.</p>
 <p>Anything that is not parsable as <code>PGM</code> or <code>PPM</code> will be downsampled as
 ASCII art. Since the source code is formatted as ASCII art, it’s only
 natural to try:</p>