DOCS-290 additional tweaks to the release notes

Author: Sam Kleinman

source/release-notes/2.2-changes.txt

@@ -1,8 +1,8 @@
 :orphan:
 
-==============================
-Changes in MongoDB Version 2.2
-==============================
+======================
+Changes in MongoDB 2.2
+======================
 
 .. toctree::
 

source/release-notes/2.2.txt

@@ -223,8 +223,8 @@ document, e.g. ``{ }``.
 
 See: :issue:`SERVER-6226`.
 
-Naming
-~~~~~~
+Behavioral Changes
+~~~~~~~~~~~~~~~~~~
 
 Restrictions on Database Names
 ``````````````````````````````
@@ -241,10 +241,18 @@ If you attempt upgrade a database instance with one or more of these characters,
 
 Change the name of these databases before upgrading.
 
-Collections Must Have Names
-```````````````````````````
+.. _2.2-id-indexes-capped-collections:
+
+``_id`` Fields and Indexes on Capped Collections
+````````````````````````````````````````````````
 
-:issue:`SERVER-4442`
+All :term:`capped collections <capped collection>` now have an ``_id``
+field by default *if* they exist outside of the ``local`` database,
+and indexes on the ``_id`` field. This change only affects capped
+collections created with 2.2 instances and does not impact existing
+capped collections.
+
+See: :issue:`SERVER-5516` for more information.
 
 Windows Specific Changes
 ~~~~~~~~~~~~~~~~~~~~~~~~
@@ -377,6 +385,13 @@ Padding Specifiable on ``compact`` Command
 
 .. TODO fix documentation and link
 
+``indexCounters`` No Longer Report Sampled Data
+```````````````````````````````````````````````
+
+:status:`indexCounters` now report actual counters that reflect index
+use and state. In previous versions, these data were sampled. See
+:issue:`SERVER-5784` and :status:`indexCounters` for more information.
+
 Replication
 ~~~~~~~~~~~
 
@@ -390,7 +405,16 @@ Improved Logging for Replica Set Lag
 
 :issue:`SERVER-3575`
 
-.. TODO add replset sync from :dbcommand:`replSetSyncFrom` :func:`rs.syncFrom()`
+Replica Set Members can Sync from Specific Membes
+`````````````````````````````````````````````````
+
+The new :dbcommand:`replSetSyncFrom` command, and
+:func:`rs.syncFrom()` helper in the :program:`mongo` shell make it
+possible for you to manually configure from which member of the set a
+replica will poll :term:`oplog` entries. Use these commands to
+override the default selection logic if needed. Always exercise
+caution with :dbcommand:`replSetSyncFrom` when overriding the default
+behavior.
 
 Map Reduce
 ~~~~~~~~~~
@@ -418,26 +442,6 @@ Documentation: :ref:`sharding-shard-key-indexes`
 Additional Improvements
 ~~~~~~~~~~~~~~~~~~~~~~~
 
-``indexCounters`` No Longer Report Sampled Data
-```````````````````````````````````````````````
-
-:status:`indexCounters` now report actual counters that reflect index
-use and state. In previous versions, these data were sampled. See
-:issue:`SERVER-5784` and :status:`indexCounters` for more information.
-
-.. _2.2-id-indexes-capped-collections:
-
-``_id`` Fields and Indexes on Capped Collections
-````````````````````````````````````````````````
-
-All :term:`capped collections <capped collection>` now have an ``_id``
-field by default *if* they exist outside of the ``local`` database,
-and indexes on the ``_id`` field. This change only affects capped
-collections created with 2.2 instances and does not impact existing
-capped collections.
-
-See: :issue:`SERVER-5516` for more information.
-
 ``$timestamp`` Extended JSON format
 ```````````````````````````````````