Update django.md

django.md

@@ -297,6 +297,12 @@ Copy the heroku url that was created (without the `https://`), go to your `djang
 ALLOWED_HOSTS = ['localhost', 'agile-earth-74098.herokuapp.com']
 ```
 
+Add `dj_database_url` so that production will get the database info from environment variables:
+
+```
+python -m pip install dj_database_url
+```
+
 At the top of `django_rest_api/settings.py` add `import dj_database_url`:
 
 ```python
@@ -327,7 +333,9 @@ create `Procfile` and add
 web: gunicorn django_rest_api.wsgi
 ```
 
-create `Pipfile` and add
+This will help heroku know how to build your app
+
+Create `Pipfile` and add
 
 ```
 [[source]]
@@ -353,6 +361,8 @@ python_version = "3.9.1"
 ```
 **Note:** on the last line, substitute your version of python (`python --version`)
     
+This will tell heroku what packages it needs
+    
 ### On the Browser 
 
 1. Go to your heroku dashboard for the heroku project you just created