Add MELPA badges

Author: syohex

README.rst

@@ -10,6 +10,10 @@
  <https://github.com/tkf/emacs-python-environment/issues>`_ (at GitHub)
  * `Travis CI
  <https://travis-ci.org/tkf/emacs-python-environment>`_ |build-status|
+ * `MELPA
+ <http://melpa.org/#/python-environment>`_ |melpa-badge|
+ * `MELPA Stable
+ <http://stable.melpa.org/#/python-environment>`_ |melpa-stable-badge|
 
 
 Emacs integrates well with external tools written in languages other
@@ -51,3 +55,11 @@ python-environment.el finds the right path.
  ?branch=master
  :target: http://travis-ci.org/tkf/emacs-python-environment
  :alt: Build Status
+.. |melpa-badge|
+ image:: http://melpa.org/packages/python-environment-badge.svg
+ :target: http://melpa.org/#/python-environment
+ :alt: MELPA Badge
+.. |melpa-stable-badge|
+ image:: http://stable.melpa.org/packages/python-environment-badge.svg
+ :target: http://stable.melpa.org/#/python-environment
+ :alt: MELPA Stable Badge