Various typos in 2024/

The following files (not all of these files were checked yet) were
modified (when mentioning README.md I also rebuilt the index.html file):

    2024/burton/README.md
    2024/endoh1/README.md
    2024/endoh1/try.sh

2024/endoh1/index.html

@@ -487,9 +487,9 @@ YouTube show for this entry:</p>
 <p>When you <code>make all</code> you see what looks like a C program, <code>rt.c</code>.
 However if you try to compile <code>rt.c</code>, you will fail: even if you try to
 define the symbols <code>X</code>, <code>Y</code>, <code>W</code>, and <code>H</code>.</p>
-<p>Well, the propose of the C program, <code>rt.c</code> is to generate the red, green, and blue colors of
+<p>Well, the purpose of the C program, <code>rt.c</code> is to generate the red, green, and blue colors of
 a single pixel, in the C Preprocessor!!!</p>
-<p>For the patient, a image may be rendered a slow pixel at a time.
+<p>For the patient, an image may be rendered a slow pixel at a time.
 Think of this as digital <a href="https://en.wikipedia.org/wiki/Pointillism">Pointillism</a>. :-)</p>
 <p>For the truly impatient who wishes to get right to the point without trying to dot around
 waiting for the <a href="https://github.com/ioccc-src/winner/blob/master/2024/endoh1/try.sh">try.sh</a> to finish, you may view these images:</p>
@@ -525,7 +525,7 @@ such as the operating system, daemons, terminal window, etc. You can even
 example for <code>SIZE</code> values of 8, 32, 128, and then 512.</p>
 <p>The optimal <code>RESERVE</code> will depend on your hardware, operating system,
 a C compiler. Making <code>RESERVE</code> too small (i.e., too negative) may slow
-down the result. We recommend that experiment various values pf <code>RESERVE</code>
+down the result. We recommend that experiment various values of <code>RESERVE</code>
 with moderate <code>SIZE</code> of <strong>32</strong> in order to try to find an optimal <code>JOBS</code>
 value before attempting to try a larger size such as <strong>512</strong> and beyond.</p>
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