Merge pull request #6 from vmagelo/main

Tweak message about dotenv.

Author: vmagelo

README.md

@@ -17,5 +17,5 @@ The [requirements.txt](./requirements.txt) has the following packages:
 | [Flask-SQLAlchemy](https://pypi.org/project/Flask-SQLAlchemy/) | Adds SQLAlchemy support to Flask application by simplifying using SQLAlchemy. Requires SQLAlchemy. |
 | [Flask-Migrate](https://pypi.org/project/Flask-Migrate/) | SQLAlchemy database migrations for Flask applications using Alembic. Allows functionality parity with Django version of this sample app.|
 | [pyscopg2](https://pypi.org/project/psycopg2/) | PostgreSQL database adapter for Python. |
-| [python-dotenv](https://pypi.org/project/python-dotenv/) | Read key-value pairs from .env file and set them as environment variables. In this sample app, those variables describe how to connect to the database locally. |
+| [python-dotenv](https://pypi.org/project/python-dotenv/) | Read key-value pairs from .env file and set them as environment variables. In this sample app, those variables describe how to connect to the database locally. <br><br> Flask's [dotenv support](https://flask.palletsprojects.com/en/2.1.x/cli/#environment-variables-from-dotenv) sets environment variables automatically from an `.env` file. |
 | [flask_wtf](https://pypi.org/project/Flask-WTF/) | Form rendering, validation, and CSRF protection for Flask with WTForms. Uses CSRFProtect extension. |