improve layout of 1987/heckbert/index.html

Judge's remark was removed in a code block.

Run `bin/readme2index.sh -v 1 1987/heckbert` to perform the above.

1987/heckbert/README.md

@@ -36,12 +36,9 @@ Try not to
 [Fold, Spindle or Mutilate](https://repository.library.brown.edu/studio/item/bdr:788264/PDF/)
 files. :-)
 
-```
-    The judges used this program to fold up
-    very long lines which the BSD fold(1)
-    was unable to process. This program has
-    been added to the contest tool chest.
-```
+The judges used this program to fold up very long lines which the
+BSD fold(1) was unable to process. This program has been added to
+the contest tool chest.
 
 
 ## Author's remarks:

1987/heckbert/index.html

@@ -167,10 +167,9 @@ To compile on a 16 bit machine, change 300000 to 30000.</p>
 <p>Try not to
 <a href="https://repository.library.brown.edu/studio/item/bdr:788264/PDF/">Fold, Spindle or Mutilate</a>
 files. :-)</p>
-<pre><code>    The judges used this program to fold up
-    very long lines which the BSD fold(1)
-    was unable to process. This program has
-    been added to the contest tool chest.</code></pre>
+<p>The judges used this program to fold up very long lines which the
+BSD fold(1) was unable to process. This program has been added to
+the contest tool chest.</p>
 <h2 id="authors-remarks">Author’s remarks:</h2>
 <p>No remarks were provided by the author.</p>
 <!--