Add pypi version and supported Python versions badges to README.rst

Author: hramezani

README.rst

@@ -1,3 +1,11 @@
+.. image:: https://img.shields.io/pypi/v/pytest-localserver.svg?style=flat
+    :alt: PyPI Version
+    :target: https://pypi.python.org/pypi/pytest-localserver
+
+.. image:: https://img.shields.io/pypi/pyversions/pytest-localserver.svg
+    :alt: Supported Python versions
+    :target: https://pypi.python.org/pypi/pytest-localserver
+
 ==================
 pytest-localserver
 ==================