fix markdown links to .txt files that use a %%TOKEN%%

2012/endoh1/index.html

@@ -565,12 +565,12 @@ gravity, pressure, and viscosity forces.</p>
 extract “integer part of real part” from a complex value by assigning (and
 casting) it to an integer-type variable.</p>
 <h3 id="notes-about-additional-files">Notes about Additional Files</h3>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/logo.txt">logo.txt</a> is a source of the logo in this remark file.</p>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/column.txt">column.txt</a> is a water column collapse, which is a popular demo of SPH.</p>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/pour-out.txt">pour-out.txt</a> pours you a cup of tea.</p>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/tanada.txt">tanada.txt</a> simulates “Terrace farming”. (“Tanada” means a
+<p><a href="logo.txt">logo.txt</a> is a source of the logo in this remark file.</p>
+<p><a href="column.txt">column.txt</a> is a water column collapse, which is a popular demo of SPH.</p>
+<p><a href="pour-out.txt">pour-out.txt</a> pours you a cup of tea.</p>
+<p><a href="tanada.txt">tanada.txt</a> simulates “Terrace farming”. (“Tanada” means a
 “<a href="https://en.wikipedia.org/wiki/Terrace_(earthworks)%20fields">terraced rice</a>” in Japanese.)</p>
-<p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/clock.txt">clock.txt</a> is a “water” clock created by HAMANO Tsukasa.</p>
+<p><a href="clock.txt">clock.txt</a> is a “water” clock created by HAMANO Tsukasa.</p>
 <p>Other <code>*.txt</code> files are from the judges.</p>
 <p><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/2012/endoh1/endoh1_color.c">endoh1_color.c</a> is a variant that shows the density by using terminal 256
 colors.</p>