minor: fixing build errors

Author: Sam Kleinman

bin/mongodb_domain.py

@@ -116,6 +116,11 @@ def add_target_and_index(self, name_obj, sig, signode):
                     pass
                 elif fullname.startswith(spath):
                     pass
+                elif fullname == '$':
+                    pass
+                    # temporary: silencing the positional operator
+                    # warning, this is the namespace clash for
+                    # projection and query/update operators.
                 else:
                     self.state_machine.reporter.warning(
                         'duplicate object description of "%s", ' % fullname +

source/core/sharded-clusters.txt

@@ -28,7 +28,7 @@ To run sharding, you set up a sharded cluster. For a description of
 sharded clusters, see :doc:`/administration/sharded-clusters`.
 
 Within a sharded cluster, you enable sharding on a per-database basis.
-Once a database is enabled for sharding, you choose which collections to
+After enabling sharding for a database, you choose which collections to
 shard. For each sharded collection, you specify a :term:`shard key`.
 
 The shard key determines the distribution of the collection's
@@ -111,8 +111,8 @@ You may disable the balancer on a temporary basis for
 maintenance and limit the window during which it runs to prevent the
 balancing process from impacting production traffic.
 
-.. seealso:: :ref:`sharding-balancing-operations` and
-   :ref:`sharding-balancing-internals`.
+.. seealso:: :doc:`/tutorial/manage-sharded-cluster-balancer` and
+   :doc:`/core/sharded-cluster-internals`.
 
 .. note::