Fix cross links

dadoonet · dadoonet · commit 7b431ecc1645 · 2015-10-06T12:18:32.000+02:00
Related to #13602 (cherry picked from commit ff4cdab) (cherry picked from commit 8b46a4b)
diff --git a/docs/plugins/discovery-ec2.asciidoc b/docs/plugins/discovery-ec2.asciidoc
@@ -178,7 +178,7 @@ You can use {ref}/modules-network.html[core network host settings] or
 ==============================================
 
 [[discovery-ec2-network-host]]
-==== EC2 Network Host
+===== EC2 Network Host
 
 When the `discovery-ec2` plugin is installed, the following are also allowed
 as valid network host settings:
