update readme

README.md

@@ -1,4 +1,22 @@
 # Contentmatcher
+
+## Development quickstart
+
+Setup a database (...). Configure a `.env` file (see `.env.dist`) (...).
+
+Install dependencies with `pipenv`.
+
+```
+$ pipenv install
+```
+
+Run `app.py`.
+
+```
+$ python app.py
+```
+
+
 ## Try it
 Usually there is a running instance [here](https://cm.kompot.si).