message: adding redis.yml to the navigation
diff: @@ -28,6 +28,7 @@ nav:
  - MariaDB: using_lagoon/drupal/services/mariadb.md
  - Solr: using_lagoon/drupal/services/solr.md
  - Varnish: using_lagoon/drupal/services/varnish.md
  + - Redis: using_lagoon/drupal/services/redis.md
  - Migrations:
  - From amazee.io: using_lagoon/migrations/amazeeio.md
  - Administration:
  