Update Wave 4 doc

Author: kelsey-steven-ada

ada-project-docs/wave_04.md

@@ -173,18 +173,13 @@ This feature should not affect other features in other waves, nor should it affe
 
 ### Requirement: Intentional Slackbot Token Location
 
-Our Slackbot token is an API key that needs to be protected.
-
-Include your Slackbot token in your code in an intentional way, following best practices about API keys in code bases.
+Our Slackbot token is an API key that needs to be protected. Include your Slackbot token in your code in an intentional way, following best practices about API keys in code bases.
 
 ### Requirement: Use Python package `requests` to make HTTP calls
 
-Remember to import this package
-
-Consider using the keyword argument `data`, `json`, and/or `headers`
+Remember to import the `requests` package. Consider using the keyword argument `data`, `json`, and/or `headers`.
 
 #### Tips
-- Remember to put your Slackbot token in your code in an intentional way, following best practices about API keys in code bases.
 - In order to get the value of an environment variable, use `os.environ.get()`, just as we used it for the database configuration.
 - Use your work from the Slack API documentation, the Slack tester, and Postman to guide your implementation.