address Acrolinx feedback

Author: huachuandeng

articles/communication-services/how-tos/call-automation/actions-for-call-control.md

@@ -170,9 +170,9 @@ The response provides you with CallConnection object that you can use to take fu
 
 You can create a connection to a call using CallLocator, then you can manage the call and perform actions in the call using Call Automation. 
 
-Currently, we support 3 different CallLocators：ServerCallLocator, GroupCallLocator and RoomCallLocator
+Currently, we support 3 different CallLocators：ServerCallLocator, GroupCallLocator, and RoomCallLocator
 
-Connecting to a call using ServerCallLocator, which take a serverCallId. You can use it to connect to regular P2P or multi-parties call.
+To connect to a call using ServerCallLocator, which take a serverCallId. You can use it to connect to regular P2P or multi-parties call.
 ### [csharp](#tab/csharp)
 
 ```csharp
@@ -207,7 +207,7 @@ call_connection_properties = client.connect_call(call_locator=server_call_locato
 
 -----
 
-Connecting to a call using GroupCallLocator, which takes a GroupCallId. You can use it to connect to a group call created using GroupCallId
+To connect to a call using GroupCallLocator, which takes a GroupCallId. You can use it to connect to a group call created using GroupCallId
 ### [csharp](#tab/csharp)
 
 ```csharp
@@ -242,7 +242,7 @@ call_connection_properties = client.connect_call(call_locator=group_call_locator
 
 -----
 
-Connecting to a call using RoomCallLocator, which takes a RoomId. You can use it to connect to call for a Room, usually used for Virtual meetings
+To connect to a call using RoomCallLocator, which takes a RoomId. You can use it to connect to a virtual meeting call using ACS Room
 ### [csharp](#tab/csharp)
 
 ```csharp
@@ -277,9 +277,9 @@ call_connection_properties = client.connect_call(call_locator=room_call_locator,
 
 -----
 
-The response provides you with CallConnection object that you can use to take further actions on this call once it's connected. Once it connects to the call, two events are published to the callback endpoint you provided earlier:
+The response provides you with CallConnection object that you can use to take further actions on this call once it successfully connect to a call. Once it connects to the call, two events are published to the callback endpoint you provided earlier:
 
-1. `CallConnected` event notifying that you have connected to the call.
+1. `CallConnected` event notifying that you successfully connect to the call.
 2. `ParticipantsUpdated` event that contains the latest list of participants in the call.
 
 ![Sequence diagram for connecting to call.](media/connect-call-flow.png)