doc: python-etcd3 is pretty stable now
**Python libraries**
-- [kragniz/python-etcd3](https://github.com/kragniz/python-etcd3) - Work in progress client for v3
+- [kragniz/python-etcd3](https://github.com/kragniz/python-etcd3) - Client for v3
- [jplana/python-etcd](https://github.com/jplana/python-etcd) - Supports v2
- [russellhaering/txetcd](https://github.com/russellhaering/txetcd) - a Twisted Python library
- [cholcombe973/autodock](https://github.com/cholcombe973/autodock) - A docker deployment automation tool
