Update README

README.md

@@ -1,3 +1,38 @@
-## labelmerge
+## Labelmerge
+![Version](https://img.shields.io/github/v/tag/khanlab/labelmerge?label=version)
+![Python3](https://img.shields.io/badge/python-3.8_|_3.9_|_3.10-blue.svg)
+![Docker Pulls](https://img.shields.io/docker/pulls/khanlab/labelmerge)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.7636410.svg)](https://doi.org/10.5281/zenodo.7636410)
 
 Merge multiple label maps.
+
+### Contributing
+Clone the git repository. Labelmerge dependencies are managed with Poetry
+(version 1.2.x), which you'll need installed on your machine.
+You can find instructions on the Poetry
+[website](https://python-poetry.org/docs/).
+
+Then, setup the development environment with the following commands:
+
+```
+poetry install
+poetry run poe setup
+```
+
+Labelmerge uses poethepoet as a task runner.
+You can see what commands are available by running:
+
+```
+poetry run poe
+```
+
+If you wish, you can also run poe [command] directly by installing poethepoet
+on your system. Follow the install instructions at the link above.
+
+Labelmerge uses pre-commit hooks (installed via the poe setup command above) to 
+lint and format code (we use black, isort, flake8). By default, these hooks are
+run on every commit.
+
+Please be sure they all pass before making a PR.
+
+