Update README.md

README.md

@@ -1,11 +1,7 @@
 pybitcoin
 =====
 
-[![CircleCI](https://img.shields.io/circleci/project/blockstack/pybitcoin.svg)](https://circleci.com/gh/blockstack/pybitcoin)
-[![PyPI](https://img.shields.io/pypi/v/pybitcoin.svg)](https://pypi.python.org/pypi/pybitcoin/)
-[![PyPI](https://img.shields.io/pypi/dm/pybitcoin.svg)](https://pypi.python.org/pypi/pybitcoin/)
-[![PyPI](https://img.shields.io/pypi/l/pybitcoin.svg)](https://github.com/namesystem/pybitcoin/blob/master/LICENSE)
-[![Slack](http://slack.blockstack.org/badge.svg)](http://slack.blockstack.org/)
+## This code is deprecated and should not be used
 
 Python library with tools for Bitcoin and other cryptocurrencies.