Fix some typos

docs/bigtable/data-api.rst

@@ -41,7 +41,7 @@ methods.
   :class:`DirectRow <google.cloud.bigtable.row.DirectRow>` class
   handles direct mutations.
 * The **conditional** way is via `CheckAndMutateRow`_. This method
-  first checks if some filter is matched in a a given row, then
+  first checks if some filter is matched in a given row, then
   applies one of two sets of mutations, depending on if a match
   occurred or not. (These mutation sets are called the "true
   mutations" and "false mutations".) The

docs/bigtable/instance-api.rst

@@ -34,7 +34,7 @@ To create an :class:`Instance <google.cloud.bigtable.instance.Instance>` object:
 
 You can also use :meth:`Client.instance` to create a local wrapper for
 instances that have already been created with the API, or through the web
-conole:
+console:
 
 .. code:: python
 

docs/pubsub/index.rst

@@ -92,7 +92,7 @@ the topic, and subscribe to that.
     ... )
     >>> subscription = subscriber.create_subscription(subscription_name, topic)
 
-The subscription is opened asychronously, and messages are processed by
+The subscription is opened asynchronously, and messages are processed by
 use of a callback.
 
 .. code-block:: python

docs/pubsub/subscriber/index.rst

@@ -67,7 +67,7 @@ this method will actually begin consumption of the subscription.
 Subscription Callbacks
 ----------------------
 
-Because subscriptions in this Pub/Sub client are opened asychronously,
+Because subscriptions in this Pub/Sub client are opened asynchronously,
 processing the messages that are yielded by the subscription is handled
 through **callbacks**.