Fix yamllint

meta/main.yml

+---
 galaxy_info:
   author: Rémi
-  description: your role description
+  description: Deploy GitLab on Docker
   company: Le Filament (https://le-filament.com)
-
   license: AGPL-3.0-or-later
-
   min_ansible_version: 2.1
-
   platforms:
-   - name: CentOS
-     versions:
-      - 7
-   - name: Ubuntu
-     versions:
-     - 16.04
-     - 18.04
-     - 20.04
-
-  galaxy_tags: []
+    - name: CentOS
+      versions:
+        - 7
+    - name: Ubuntu
+      versions:
+        - 16.04
+        - 18.04
+        - 20.04
+  galaxy_tags:
+    - docker
+    - communityedition
+    - gitlab