Add maintenance warning to README

README.rst

@@ -1,23 +1,13 @@
 Python GLMNET
 =============
 
-|CircleCI| |Conda| |PyPI| |PyVersions|
+Maintenance Warning
+-------------------
 
-.. |CircleCI| image:: https://circleci.com/gh/civisanalytics/python-glmnet.svg?style=svg
-    :target: https://circleci.com/gh/civisanalytics/python-glmnet
-    :alt: Build status
+This package is not longer maintained.
 
-.. |Conda| image:: https://anaconda.org/conda-forge/glmnet/badges/version.svg
-   :target: https://anaconda.org/conda-forge/glmnet
-   :alt: Latest version on conda forge
-
-.. |PyPI| image:: https://img.shields.io/pypi/v/glmnet.svg
-   :target: https://pypi.org/project/glmnet/
-   :alt: Latest version on PyPI
-
-.. |PyVersions| image:: https://img.shields.io/pypi/pyversions/glmnet.svg
-   :target: https://pypi.org/project/glmnet/
-   :alt: Supported python versions for python-glmnet
+Description
+-----------
 
 This is a Python wrapper for the fortran library used in the R package
 `glmnet <http://web.stanford.edu/~hastie/glmnet/glmnet_alpha.html>`__.