fix gitlab-ci filename

Signed-off-by: George Gaál <[email protected]>

Author: gecube

docs/ee/gitlab-support.mdx

@@ -50,7 +50,7 @@ make sure that "Comments" and "Merge request events" are selected for Trigger ev
 
 ### Create digger pipeline in your GitLab repo
 
-To create a GitLab pipeline you can use a .GitLab-ci.yml file in the root of your file. In this you need to
+To create a GitLab pipeline you can use a .gitlab-ci.yml file in the root of your file. In this you need to
 create a script which downloads digger binary and invokes it, the purpose here is to have this pipeline triggered
 by digger externally. Here is an example of such file: