Fixes in 1987 html files

In particular 1987/index.html and 1987/lievaart/index.html. Other files
in 1987 seemed to be okay.

1987/index.html

@@ -391,22 +391,26 @@
 compile it and how to run the winning program. Look at the winning source and
 try to figure how it does what it does! You may then wish to look at the
 Author’s remarks for even more details.</p>
-<p>The <a href="rules.txt">rules for 1997</a> suggested even more categories than in 1986.
+<p>The <a href="rules.txt">rules</a> for <a href="../years.html#1987">1987</a> suggested even more
+categories than in <a href="../years.html#1986">1986</a>.
 Hints for what to do and not to do were also given in the <a href="rules.txt">rules</a>.
 For example, a simple excessive abuse of <code>/lib/cpp</code> was discouraged unless the
 abuse was unusual. The mailboxes for the contest were moved from nsc to amdahl.
 The practice of posting a preliminary set of rules for the next year was started
 this year.</p>
-<p><a href="rules.txt">Rules</a> and results were posted to comp.lang.c and comp.unix.wizards
-with an announcement in news.announce.important.
-<a href="https://www.vintage-computer.com/publications.php?microsystemsjournal">Micro/Systems Journal</a>
-published the 1987 winning entries. <a href="../authors.html#Mary_Ann_Horton">Mary Ann Horton</a> included
-a version of the <a href="../years.html#1987">1987 winning entries</a> in an appendix of
-her C book <a href="https://www.amazon.com/Portable-Software-Mark-R-Horton/dp/0138680507">Portable C Software International
+<p><a href="rules.txt">Rules</a> and <a href="../years.html#1987">results</a> were posted to
+<em>comp.lang.c</em>
+and <em>comp.unix.wizards</em> with an announcement in <em>news.announce.important</em>.
+<a href="https://www.vintage-computer.com/publications.php?microsystemsjournal">Micro/Systems
+Journal</a>
+published the 1987 winning entries. <a href="../authors.html#Mary_Ann_Horton">Mary Ann
+Horton</a> included a version of the <a href="../years.html#1987">1987 winning
+entries</a> in an appendix of her C book <a href="https://www.amazon.com/Portable-Software-Mark-R-Horton/dp/0138680507">Portable C Software
+International
 Edition</a>
-(published under the name <em>Mark R Horton</em>).
-The first announcement of winning entries at the Summer 87 USENIX was helped by
-a small fly that danced all over the foils.</p>
+(published under the name <em>Mark R Horton</em>). The first announcement of winning
+entries at the Summer 87 USENIX was helped by a small fly that danced all over
+the foils.</p>
 <h2 id="final-comments">Final Comments</h2>
 <p><strong>IMPORTANT NOTE</strong>: See <a href="../contact.html">contact.html</a> for up to date contact details
 as well as details on how to provide fixes to any of the entries.