When using the bot without "installing" it, you need to pass the bot

token. The language I use to explain this could be cleaned up by
someone on the Slack team who has a better understanding of the
installation process... but the gist is in this patch. (It took many
cycles of Slack support to get to the bottom of this, so it is really
worthwhile adding this clarification.)

thx.

Author: walterbender

docs/Section-4.md

@@ -16,6 +16,16 @@ export CLIENT_SECRET='xxXXxxXXXXXxxxxXXX'
 export VERIFICATION_TOKEN='xxxXXXxxXXxxX'
 ```
 
+Note that if you have not "installed" your bot, you need to pass the BOT TOKEN to the slack_client. We can use export here as well and modify the bot init function to pass the TOKEN to the slack_client init.
+```
+export SLACK_BOT_TOKEN='xoxb-XXXXXXXXXXXX-xxxxxxxxxxxx-XXXXXXXXXXXXXXXXXXXXXXXX'
+```
+
+In `bot.py`, Line 24:
+```
+        self.client = SlackClient(os.environ.get("SLACK_BOT_TOKEN"))
+```
+
 Our app will grab these secrets from our environment.
 
 ---