Add README badges (#118)

Author: smeisler

README.md

@@ -3,6 +3,11 @@
 [![Docker Image](https://img.shields.io/badge/docker-nipreps/fmripost--aroma-brightgreen.svg?logo=docker&style=flat)](https://hub.docker.com/r/nipreps/fmripost-aroma/tags/)
 [![PyPI - Version](https://img.shields.io/pypi/v/fmripost-aroma.svg)](https://pypi.org/project/fmripost-aroma)
 [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/fmripost-aroma.svg)](https://pypi.org/project/fmripost-aroma)
+[![GitHub Repository](https://img.shields.io/badge/Source%20Code-nipreps%2Ffmripost--aroma-purple)](https://github.com/nipreps/fmripost-aroma/)
+[![Documentation](https://readthedocs.org/projects/fmripost-aroma/badge/?version=latest)](https://fmripost-aroma.readthedocs.io/latest/)
+[![Codecov](https://codecov.io/gh/nipreps/fmripost-aroma/branch/main/graph/badge.svg)](https://app.codecov.io/gh/nipreps/fmripost-aroma)
+[![License](https://img.shields.io/github/license/nipreps/fmripost-aroma)](https://opensource.org/license/apache-2-0)
+[![Test Status](https://github.com/nipreps/fmripost-aroma/actions/workflows/test.yml/badge.svg)](https://github.com/nipreps/fmripost-aroma/actions/workflows/test.yml)
 
 fMRIPost-AROMA is a BIDS App for running ICA-AROMA on a preprocessed
 fMRI dataset.