Add links to Twilio conversations

Author: Tim Mendoza

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### New Features
 
-- Added support for Twilio Conversations. When an application requests a token from the `/token` endpoint, a `create_conversation=true` parameter can now be specified. When this parameter is present, the `/token` endpoint will create a conversation that is associated with the room and add the participant to it. This allows video application to use Twilio Conversations for in-room chat.
+- Added support for Twilio Conversations. When an application requests a token from the `/token` endpoint, a `create_conversation=true` parameter can now be specified. When this parameter is present, the `/token` endpoint will create a conversation that is associated with the room and add the participant to it. This allows video application to use [Twilio Conversations](https://www.twilio.com/conversations-api) for in-room chat.
 
 ### Maintenence
 

README.md

@@ -82,7 +82,7 @@ Each request is verified using a passcode generated at deploy time. Passcodes re
 
 ### Token
 
-This endpoint returns a Programmable Video Access token. When `create_room` is true, it will create a room, and when `create_conversation` is true, it will create a [Twilio conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) associated with the room. This token is used by the above mentioned Video Apps to connect to a video room and a conversation.
+This endpoint returns a Programmable Video Access token. When `create_room` is true, it will create a room, and when `create_conversation` is true, it will create a [Twilio Conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) associated with the room. This token is used by the above mentioned Video Apps to connect to a video room and a conversation.
 
 ```shell
 POST /token
@@ -96,7 +96,7 @@ POST /token
 | `user_identity`       | `string`  | **Required**. The user's identity.                                                     |
 | `room_name`           | `string`  | **Required when `create_room` is `true`** A room name that will be used to create a token scoped to connecting to only one room. |
 | `create_room`         | `boolean` | (default: `true`) When false, a room will not be created when a token is requested.    |
-| `create_conversation` | `boolean` | (default: `false`) When true, a Twilio Conversation will be created (if it doesn't already exist) and a participant will be added to it when a token is requested. `create_room` must also be `true`.   |
+| `create_conversation` | `boolean` | (default: `false`) When true, a [Twilio Conversation](https://www.twilio.com/docs/conversations/api/conversation-resource) will be created (if it doesn't already exist) and a participant will be added to it when a token is requested. `create_room` must also be `true`.   |
 
 #### Success Responses