Some formatting fixes for the groups doc

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

groups_in_fedora.md

@@ -3,11 +3,13 @@
 ## What are the different types of groups?
 
 Fedora has a few types of groups:
+
 - "tracking" groups
 - "shell" groups
 - "pkgdb" groups
 
 * Tracking groups
+
 The tracking groups are primarily meant to indicate that people are contributors
 in a certain part of the Fedora Project.
 These group will allow new accounts to become CLA+1 which is the way of saying
@@ -24,6 +26,7 @@ These groups are also the ones used when one wants to share the maintenance of
 COPR projects with other people via a group.
 
 * Shell groups
+
 These groups are used when contributors gain access to some of the machines
 in the Fedora Infrastructure.
 For example, members of the sysadmin group are allowed to commit on the
@@ -31,6 +34,7 @@ infrastructure's git repository and this is allowed by giving write access to th
 git repository to this group, on the file-system.
 
 * pkgdb groups
+
 These groups are meant to facilitate the collective maintenance of packages in
 Fedora.
 In other words, by giving commit access to the group on a package (or set of