Update man pages with role list
This change adds man page entries for `splinter role` and `splinter role
list`.
@@ -96,6 +96,7 @@ SEE ALSO
| `splinter-database-migrate(1)`
| `splinter-health-status(1)`
| `splinter-keygen(1)`
+| `splinter-role-list(1)`
|
| `splinterd(1)`
|
