[wwwdocs] readings.html and a eah-jena.de link

[Gerald Pfeifer]

Applied.

Gerald

Index: readings.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/readings.html,v
retrieving revision 1.281
diff -u -r1.281 readings.html
--- readings.html	9 Sep 2017 14:01:28 -0000	1.281
+++ readings.html	29 Oct 2017 17:43:13 -0000
@@ -504,7 +504,7 @@
        A few links for your enjoyment.
    <ul>
      <li>
-       <a href="http://www.eah-jena.de/~kleine/history/">Historic Documents in
+       <a href="http://web.eah-jena.de/~kleine/history/">Historic Documents in
        Computer Science</a> by Karl Kleine
      </li>