message: Added rough outline of fb
diff: +# Configure Botkit and Facebook Messenger or Workplace
  +
  +
  +### 1. [Install Botkit](https://github.com/howdyai/botkit/blob/master/readme.md#start-with-botkit-studio)
  +
  +### 2. Create a Facebook App for Web and note down or create a new Facebook Page.
  +
  +Your Facebook page will be used for the app's identity.
  +
  +### 3. Get a page access token for your app
  +
  +Copy this token, you'll need it!
  +
  +### 4. Define your own "verify token" -
  +
  +this is a string that you control that Facebook will use to verify your web hook endpoint
  +
  +### 5. Run the example bot app, using the two tokens you just created.
  +
  +
  +
  +
  +`Note` If you are not running your bot at a public, SSL-enabled internet address, use the --lt option and note the URL it gives you.
  +
  +`page_token=<MY PAGE TOKEN> verify_token=<MY_VERIFY_TOKEN> node facebook_bot.js [--lt [--ltsubdomain CUSTOM_SUBDOMAIN]]`
  +
  +### 6. Set up a webhook endpoint for your app that uses your public URL.
  +
  +Use the verify token you defined in step 4!
  +Note - You will need to provide Facebook a callback endpoint to receive requests from Facebook. By default Botkit will serve content from "https://YOURSERVER/facebook/receive". You can use a tool like ngrok.io or localtunnel.me to expose your local development enviroment to the outside world for the purposes of testing your Messenger bot.
  +
  +Your bot should be online! Within Facebook, find your page, and click the "Message" button in the header.
  +
  +Try:
  +
  +who are you?
  +call me Bob
  +shutdown
  +Things to note
  +
  +### 7. (Optional) Validate Requests - Secure your webhook!
  +
  +Facebook sends an X-HUB signature header with requests to your webhook. You can verify the requests are coming from Facebook by enabling validate_requests: true when creating your bot controller. This checks the sha1 signature of the incoming payload against your Facebook App Secret (which is seperate from your webhook's verify_token), preventing unauthorized access to your webhook. You must also pass your app_secret into your environment variables when running your bot.
  +
  +The Facebook App secret is available on the Overview page of your Facebook App's admin page. Click show to reveal it.
  +
  +app_secret=abcdefg12345 page_token=123455abcd verify_token=VerIfY-tOkEn node facebook_bot.js
  +
  +### 8. Customize your Bot
  +
  +Using [Botkit Studio's conversation design tools](https://studio.botkit.ai) and the powerful [Botkit SDK](https://github.com/howdyai/botkit), you can build your dream bot!
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