Minor typo fixes and grammar adjustments

Change-Id: I2d7376045ff0c764c60b2dc2bf90ad1ff37c07b4
Closes-Bug: 1602315

doc/source/tutorial/basics.rst

@@ -90,8 +90,8 @@ section in the :doc:`User References <../user/index>` documentation.
 Scaling a Cluster
 ~~~~~~~~~~~~~~~~~
 
-Now you can try change the size of your cluster. To increase the size of the
+Now you can try to change the size of your cluster. To increase the size,
-cluster, use the following command:
+use the following command:
 
 .. code-block:: console
 
@@ -129,7 +129,7 @@ a cluster is resized. For more details, please check the
 Creating a Node
 ---------------
 
-Another way to manage cluster node membership is to create a standalone code
+Another way to manage cluster node membership is to create a standalone node
 then add it to a cluster. To create a node using a given profile:
 
 .. code-block:: console
@@ -171,7 +171,7 @@ command:
   $ senlin cluster-show mycluster
   $ senlin node-show oldnode
 
-For other commands and options cluster membership management, please check the
+For other cluster membership management commands and options, please check the
 :doc:`Cluster Membership <../user/membership>` section in the
 :doc:`User References <../user/index>` documentation.
 

doc/source/tutorial/policies.rst

@@ -49,13 +49,13 @@ To verify the policy creation, you can do:
 Attaching a Policy
 ~~~~~~~~~~~~~~~~~~
 
-The enforce a policy on a cluster, you will attach a policy to a cluster:
+The enforce a policy on a cluster, attach a policy to it:
 
 .. code-block:: console
 
   $ senlin cluster-policy-attach -p dp01 mycluster
 
-To verify the policy attach operation, you can do:
+To verify the policy attach operation, do the following:
 
 .. code-block:: console
 
@@ -66,7 +66,7 @@ Verifying a Policy
 ~~~~~~~~~~~~~~~~~~
 
 To verify the deletion policy attached to the cluster ``mycluster``, you
-can try expanding the cluster followed by shrinking it:
+can try expanding the cluster, followed by shrinking it:
 
 .. code-block:: console
 

doc/source/tutorial/receivers.rst

@@ -17,7 +17,7 @@
 Working with Receivers
 ======================
 
-Receivers are the event sinks associated to senlin clusters so that when
+Receivers are the event sinks associated to senlin clusters. When
 certain events (or alarms) are seen by a monitoring software, the software can
 notify the senlin clusters of those events (or alarms). When senlin receives
 those notifications, it can automatically trigger some predefined operations
@@ -35,7 +35,7 @@ cluster:
 
   $ senlin receiver-create -c mycluster -a CLUSTER_SCALE_IN w_scale_in
 
-The output from the command will be something like shown below:
+The output from the command will be something like this:
 
 .. code-block:: console
 

examples/policies/deletion_policy.yaml

@@ -14,6 +14,6 @@ properties:
   # This param buys an instance some time before deletion
   grace_period: 60
 
-  # Whether the deletion will reduce the desired capability of
+  # Whether the deletion will reduce the desired capacity of
-  # the cluster as well.
+  # the cluster as well
   reduce_desired_capacity: False