Fixed typo.

Author: janpgit

docs/index.html

@@ -44,9 +44,8 @@ <h2>Contents</h2>
 <a href="#materials">Materials</a><br>
 <a href="#unix_access">Unix machine access</a><br>
 <a href="#exams">Exams</a><br> 
-<a href="#practices">Practices and class
-assignments</a><br>
-<a href="#consultations">Consulations</a><br>
+<a href="#practices">Practices and class assignments</a><br>
+<a href="#consultations">Consultations</a><br>
 <a href="#contact">Contact</a><br>
 <a href="#schedule">Schedule</a>