added badges and links

Author: Kenneth Hart

docs/source/index.rst

@@ -130,3 +130,32 @@ Contents
    package_guide
    troubleshooting
    API <microstructpy>
+
+.. LINKS
+
+.. _Documentation : https://microstructpy.readthedocs.io
+.. _GitHub: https://github.com/kip-hart/MicroStructPy
+.. _PyPI : https://pypi.org/project/microstructpy/
+.. _Repository: https://github.com/kip-hart/MicroStructPy
+
+.. EXTERNAL IMAGES
+
+.. |l-github| image:: https://api.iconify.design/octicon:mark-github.svg?color=black0&inline=true&height=16
+    :alt: GitHub
+
+.. |l-rtd| image:: https://api.iconify.design/simple-icons:readthedocs.svg?color=black&inline=true&height=16
+    :alt: ReadTheDocs
+
+.. |l-pypi| image:: https://api.iconify.design/mdi:cube-outline.svg?color=black&inline=true&height=16
+    :alt: PyPI
+
+
+.. SHIELDS
+
+.. |s-travis| image:: https://img.shields.io/travis/kip-hart/MicroStructPy
+    :target: https://travis-ci.org/kip-hart/MicroStructPy
+    :alt: Travis CI
+
+.. |s-license| image:: https://img.shields.io/github/license/kip-hart/MicroStructPy
+    :target: https://github.com/kip-hart/MicroStructPy/blob/master/LICENSE.rst
+    :alt: License