Fix errorneous link

[SVN r15992]

more/lib_guide.htm

@@ -28,7 +28,7 @@
 &nbsp;&nbsp;&nbsp; <a href="#Ownership">Ownership</a><br>
 <a href="#Guidelines">Guidelines</a><br>
 &nbsp;&nbsp;&nbsp; <a href="#Design and Programming">Design and programming</a><br>
-&nbsp;&nbsp;&nbsp; <a href="#Design and Programming">Directory structure and 
+&nbsp;&nbsp;&nbsp; <a href="#Directory structure">Directory structure and 
 filenames</a><br>
 &nbsp;&nbsp;&nbsp; <a href="#Naming consistency">Naming consistency</a><br>
 &nbsp;&nbsp;&nbsp; <a href="#Documentation">Documentation</a><br>