Merge pull request #8 from sadikkuzu/patch-1

Fix env var name

Author: judy2k

README.md

@@ -6,7 +6,7 @@ It was written to accompany a [blog post](https://developer.mongodb.com/quicksta
 ## TL;DR
 
 If you really don't want to read the [blog post](https://developer.mongodb.com/quickstart/python-quickstart-fastapi/) and want to get up and running,
-activate your Python virtualenv, and then run the following from your terminal (edit the `DB_URL` first!):
+activate your Python virtualenv, and then run the following from your terminal (edit the `MONGODB_URL` first!):
 
 ```bash
 # Install the requirements: