Adjusted links to access local docs.

Author: janpgit

docs/cstyle.html

@@ -43,11 +43,10 @@
 
 </p><p>The <b>recommended C style is used for the Oracle Solaris operating
 system source code</b> and is explained in a short (~20 pages) nicely formatted
-document: <a href="http://mff.devnull.cz/cstyle/cstyle.ms.pdf">C Style and
-Coding Standards for SunOS</a>.
+document: <a href="./cstyle.ms.pdf">C Style and Coding Standards for SunOS</a>.
 
-</p><p>The <a href="http://mff.devnull.cz/cstyle/cstyle.pl">cstyle.pl</a> for
-verification is provided, and it works like this:
+</p><p>The <a href="./cstyle.pl">cstyle.pl</a> for verification is provided, and
+it works like this:
 
 </p><pre>$ chmod u+x cstyle.pl
 $ ./cstyle.pl src/exams/parallel-udp/*.c