fix CI complaint about titles

roadmap/2020.md

@@ -33,7 +33,7 @@ Assertions:
  * gitlab hardware requirements covered by another budget
  * we absorb the extra bandwidth costs from the new hardware design (currently 38EUR per month but could rise when new bandwidth usage comes in) - could be shifted to TBB team or at least labeled as such
 
-## TODO
+# TODO
 
  * nextcloud roadmap
  * identify critical services and realistic improvements #31243 (done)
@@ -50,6 +50,8 @@ Assertions:
    * upgrade services
    * problems with the service
 
+# Monthly reports
+
 ## January
 
  * [x] catchup after holidays
@@ -168,7 +170,7 @@ there are no ticket lists anymore.)
  * one or two week xmas holiday
  * CCC?
 
-## 2021 preview
+# 2021 preview
 
 Objectives: