Update MAINTAINERS

* Update link to 'Team Structure'
* Add directory node before maintainers
* Add Bulat Gaifullin to the maintainers

Change-Id: I8b012dbf226d36bc8a55e99852764ce1306ea344

MAINTAINERS

@@ -17,7 +17,7 @@ description:
   Exceptions are when maintainers are actually cores, or when maintainers
   are not available for some reason (e.g. on vacation).
 
-  [1] https://review.openstack.org/#/c/225376/ (to be replaced by html link once merged)
+  [1] http://specs.fuel-infra.org/fuel-specs-master/policy/team-structure.html
   [2] https://review.openstack.org/#/admin/groups/1004,members
   [3] http://lists.openstack.org/pipermail/openstack-dev/2015-August/072406.html
 
@@ -25,9 +25,17 @@ description:
   to read this as a configuration data.
 
 maintainers:
-- name:   Evgeny Li
-  email:  eli@mirantis.com
-  IRC:    evgeniyl
-- name:   Igor Kalnitsky
-  email:  ikalnitsky@mirantis.com
-  IRC:    ikalnitsky
+
+- ./:
+
+    - name:   Bulat Gaifullin
+      email:  bgaifullin@mirantis.com
+      IRC:    bgaifullin
+
+    - name:   Evgeny Li
+      email:  eli@mirantis.com
+      IRC:    evgeniyl
+
+    - name:   Igor Kalnitsky
+      email:  ikalnitsky@mirantis.com
+      IRC:    ikalnitsky