Fixing a typo in readme

README.md

@@ -1,9 +1,8 @@
 # Botframework adapter for Hubot
 
-Set environment variables `BOTBUILDER_APP_ID` and `BOTBUILDER_APP_PASSWORD` to use this with a Facebook account.
-You can optionally set envvars `BOTBUILDER_ENDPOINT` value to listen on a custom HTTP endpoint (defualt is `/api/messages`).
-Install `hubot`. Make sure to `npm install --save hubot-botframework` to add this module. 
-Run the command `./bin/hubot -a botframework` to run the bot from your local computer.
+Set environment variables `BOTBUILDER_APP_ID` and `BOTBUILDER_APP_PASSWORD` of your bot from Botframework portal. You can optionally set envvars `BOTBUILDER_ENDPOINT` value to listen on a custom HTTP endpoint (defualt is `/api/messages`).
+
+Install `hubot`. Make sure to `npm install --save hubot-botframework` to add this module. Run the command `./bin/hubot -a botframework` to run the bot from your local computer.
 
 # Contributing