Added a README.

Author: judy2k

README.md

@@ -0,0 +1,26 @@
+# MongoDB with FastAPI
+
+This is a small sample project demonstrating how to build an API with [MongoDB](https://developer.mongodb.com/) and [FastAPI](https://fastapi.tiangolo.com/).
+It was written to accompany a [blog post](https://developer.mongodb.com/quickstart/python-quickstart-fastapi/) - you should go read it!
+
+## 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, to run the code run the following from your terminal (edit the `DB_URL` first!):
+
+```bash
+# Install the requirements:
+pip install -r requirements.txt
+
+# Configure the location of your MongoDB database:
+export DB_URL="mongodb+srv://<username>:<password>@<url>/<db>?retryWrites=true&w=majority"
+
+# Start the service:
+uvicorn app:app --reload
+```
+
+(Check out [MongoDB Atlas](https://www.mongodb.com/cloud/atlas) if you need a MongoDB database.)
+
+Now you can load http://localhost:8000 in your browser ... but there won't be much to see until you've inserted some data.
+
+If you have any questions or suggestions, check out the [MongoDB Community Forums](https://developer.mongodb.com/community/forums/)!