Blog post for Hacktoberfest 2017 (#3456)

* Blog post for Hacktoberfest 2017

* Add logo

* Update

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+---
+layout: post
+title: "Participating in Hacktoberfest"
+description: "Home Assistant will be participating in Hacktoberfest to help people to get started with open-source."
+date: 2017-09-29 08:00:00 +0000
+date_formatted: "September 29, 2017"
+author: Fabian Affolter
+author_twitter: fabaff
+comments: true
+categories: Community
+og_image: /images/blog/2017-09-hacktoberfest/hacktoberfest-2017.png
+---
+
+For the second year in a row, Home Assistant will be participating in [Hacktoberfest]. Hacktoberfest is an event organized by DigitalOcean and GitHub to support and celebrate open source. The idea is that open source projects like Home Assistant will gather a bunch of entry-level bugs, features, and documentation enhancements and that you, a current or future contributor, will help us fix them. If you submit four pull-requests during October, you will have earned yourself a limited edition Hacktoberfest T-shirt!
+
+Why contribute to Home Assistant?
+
+ - Written in Python 3 with 94% test coverage
+ - Active and helpful community
+ - Friendly to new contributors
+
+Resources to get started:
+
+ - [Sign up for Hacktoberfest][Hacktoberfest-reg]
+ - [List of entry-level issues for Home Assistant][issues]
+ - [Instructions to setup your development environment][dev-env]
+ - [Home Assistant Development Chat][dev-chat]
+ - [Home Assistant Development Forums][dev-forum]
+ - [Hacktoberfest website][Hacktoberfest]
+
+Are you not a programmer but still want to contribute to Home Assistant? Check out our [list of entry-level issues for the Home Assistant website][issues-doc].
+
+Our participation for [Hacktoberfest 2016][hackt-2016] was a huge success. Join us to repeat it this year.
+
+[![Hacktober fest logo][logo]][Hacktoberfest]
+
+[logo]: /images/blog/2016-10-hacktoberfest/hacktoberfest.png
+[Hacktoberfest]: https://hacktoberfest.digitalocean.com/
+[Hacktoberfest-reg]: https://hacktoberfest.digitalocean.com/sign_up/register
+[issues]: https://github.com/home-assistant/home-assistant/labels/Hacktoberfest
+[issues-doc]: https://github.com/home-assistant/home-assistant.github.io/labels/Hacktoberfest
+[dev-env]: /developers/development_environment/
+[dev-chat]: https://discord.gg/8X8DTH4
+[dev-forum]: https://community.home-assistant.io/c/development
+[hackt-2016]: https://home-assistant.io/blog/2016/11/05/hacktoberfest-influxdb-weather/#hacktoberfest
+