BUG: fix markdown syntax in MR template

.gitlab/merge_request_templates/request_for_changes.md

@@ -37,9 +37,11 @@ List or link documentation modifications that were made (doxygen, example, Softw
 The copyright owner is *COPYRIGHT OWNER (OR OWNER'S AGENT)* and has signed the ORFEO ToolBox Contributor License Agreement.
 
 <hr>
+
 ***Check before merging:***
+
 - All discussions are resolved
 - At least 2 :thumbsup: votes from core developers, no :thumbsdown: vote.
 - The feature branch is (reasonably) up-to-date with the base branch
 - Dashboard is green
-- Copyright owner has signed the ORFEO ToolBox Contributor License Agreement
\ No newline at end of file
+- Copyright owner has signed the ORFEO ToolBox Contributor License Agreement