fix some typos with writeConcern

Author: monkey101

source/core/write-operations.txt

@@ -124,8 +124,8 @@ of a replica set. See the :ref:`Write Concern for Replica Sets
 
 .. note::
 
-   Requiring *journaled* write concern in a replica set, only requires
-   a journal commit the write operation to the :term:`primary` of the
+   Requiring *journaled* write concern in a replica set only requires
+   a journal commit of the write operation to the :term:`primary` of the
    set regardless of the level of *replica acknowledged* write
    concern.
 

source/reference/command/getLastError.txt

@@ -27,7 +27,7 @@ getLastError
                      journaling enabled, this option has no effect.
 
    :param w: When running with replication, this is the number of
-             servers to replica to before returning. A ``w`` value of
+             servers to replicate to before returning. A ``w`` value of
              1 indicates the primary only.  A ``w`` value of 2
              includes the primary and at least one secondary, etc.
              In place of a number, you may also set ``w`` to
@@ -45,7 +45,7 @@ getLastError
                          data set.
 
    :param integer wtimeout: Optional. Milliseconds. Specify a value in
-                            milliseconds to control how long the to
+                            milliseconds to control how long to
                             wait for write propagation to complete. If
                             replication does not complete in the given
                             timeframe, the :dbcommand:`getLastError`