Clean up C2 Tutorial

Change-Id: I0ad4a56d97b74f9d281156fe61b4e16bd3743391
diff --git a/templates/doc/ql/cosmas-2.html.ep b/templates/doc/ql/cosmas-2.html.ep
index a0453c2..fa971c2 100644
--- a/templates/doc/ql/cosmas-2.html.ep
+++ b/templates/doc/ql/cosmas-2.html.ep
@@ -146,6 +146,7 @@
   
 </section>
 
+<!--
 <section id="annotation-operators">
   <h3>Annotation Operators</h3>
   %= under_construction
@@ -163,3 +164,4 @@
   %= under_construction
   %# LINKS, RECHTS, INKLUSIVE, EXKLUSIVE, BED
 </section>
+-->
\ No newline at end of file