Adds new introduction and refactors the old introduction

docs/resources.rst

@@ -1,3 +1,50 @@
 =====================
 Resources
 =====================
+
+Documentation: https://certbot.eff.org/docs
+
+Software project: https://github.com/certbot/certbot
+
+Notes for developers: https://certbot.eff.org/docs/contributing.html
+
+Main Website: https://letsencrypt.org/
+
+Let's Encrypt FAQ: https://community.letsencrypt.org/t/frequently-asked-questions-faq/26#topic-title
+
+IRC Channel: #letsencrypt on `Freenode`_ or #certbot on `OFTC`_
+
+Community: https://community.letsencrypt.org
+
+ACME spec: http://ietf-wg-acme.github.io/acme/
+
+ACME working area in github: https://github.com/ietf-wg-acme/acme
+
+
+Mailing list: `client-dev`_ (to subscribe without a Google account, send an
+email to client-dev+subscribe@letsencrypt.org)
+
+|build-status| |coverage| |docs| |container|
+
+
+
+.. |build-status| image:: https://travis-ci.org/certbot/certbot.svg?branch=master
+   :target: https://travis-ci.org/certbot/certbot
+   :alt: Travis CI status
+
+.. |coverage| image:: https://coveralls.io/repos/certbot/certbot/badge.svg?branch=master
+   :target: https://coveralls.io/r/certbot/certbot
+   :alt: Coverage status
+
+.. |docs| image:: https://readthedocs.org/projects/letsencrypt/badge/
+   :target: https://readthedocs.org/projects/letsencrypt/
+   :alt: Documentation status
+
+.. |container| image:: https://quay.io/repository/letsencrypt/letsencrypt/status
+   :target: https://quay.io/repository/letsencrypt/letsencrypt
+   :alt: Docker Repository on Quay.io
+
+.. _`installation instructions`:
+   https://letsencrypt.readthedocs.org/en/latest/using.html
+
+.. _watch demo video: https://www.youtube.com/watch?v=Gas_sSB-5SU