Docstring update for slacker.py

Signed-off-by: Yvan Satyawan <[email protected]>

Author: yvan674

INSTALL.md

@@ -8,7 +8,7 @@ We strongly recommend that you create a virtual environment using conda.
 This project was built to run on CUDA 9.0. It should work though on any other CUDA version that is compatible with Pytorch.
 Install the CUDA toolkit as you would normally.
 
-#### Cuda without `sudo`
+#### CUDA toolkit without `sudo`
 Occasionally, you might want to install the CUDA toolkit without using `sudo`, such as when you don't have `sudo` access to the computer.
 This can get confusing. To help with that, here is a step-by-step guide on installing the CUDA toolkit without `sudo`.
 

src/utils/slacker.py

@@ -1,6 +1,12 @@
 """Slacker.
 
-Creates messages to send to a slack bot when something is amiss.
+Creates messages to send to a slack bot when something is amiss. To make sure
+this runs, the following environment variable must be added: SLACK_API_TOKEN.
+
+To add this, follow the instructions at api.slack.com to get a slack api token.
+A new app must be created and a bot added to the app. The API token can then
+be added to environment variables using whatever method works best for the host
+OS.
 
 Author:
     Yvan Satyawan <[email protected]>