organize the inititives list out a bit better

Signed-off-by: Ryan Lerch <rlerch@redhat.com>

docs/initiatives.rst

@@ -4,12 +4,29 @@ Initiatives
 .. toctree::
     :maxdepth: 2
 
+Drafts
+------
+.. toctree::
+    :maxdepth: 1
+
+    fmn/index
+
+Completed review
+----------------
+.. toctree::
+    :maxdepth: 1
+    
+    mailman3/index
+    pdc/index
+    flask-oidc/index
+
+Implemented
+-----------
+.. toctree::
+    :maxdepth: 1
+    
     datanommer_datagrepper/index
     monitoring_metrics/index
-    pdc/index
-    fmn/index
     mirrors-countme/index
-    mailman3/index
     bodhi/index
-    flask-oidc/index
     package-automation/index