merge: DOCS-133 apply ops documentation

Author: Sam Kleinman

source/reference/commands.txt

@@ -2466,14 +2466,26 @@ Internal Use
 
    .. write-lock, slave-ok
 
-.. dbcommand:: applyOps
+.. dbcommand:: applyOps(operations, preCondition:[ ns: namespace, q: query, res: result ])
+
+   :param array operations: an array of operations to perform.
+   :param preCondition: Optional. Specifies a precondition which must be met before applying
+                        the entry from the :term:`oplog`.  Use :code:`ns` to specify a :term:`namespace`,
+                        :code:`q` to specify a :term:`query` and :code:`res` to specify the
+                        result which the query should match.
 
    :dbcommand:`applyOps` is an internal command that supports sharding
    functionality.
+   It applies :term:`oplog` entries passed to the command in the <operations> array, to a database, or collection if you specify the :term:`ns` option.
 
-   .. write-lock
+.. code-block:: javascript
+
+     db.runCommand({ { applyOps: <operations>, preCondition: [ ns: <namespace>, q: <query>, res: <result> ] } )
+
+
+.. write-lock
 
-   .. see: DOCS-133; SERVER-4259
+.. see: DOCS-133; SERVER-4259
 
 .. dbcommand:: replSetElect