Add community roundup #1 blog post (#2192)

* Add community roundup #1 blog post

* Fix link

* Fixed their confusion

docs/blog/2017-09-21-community-roundup-1/index.md

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+---
+title: "Community Roundup #1"
+date: 2017-09-21
+author: "Kyle Mathews"
+image: "on-the-trail.jpg"
+showImageInArticle: true
+typora-copy-images-to: ./
+---
+
+It's been a wild 77 days since Gatsby 1.0.0 was released into the world on July 6th, 2017.
+
+By the numbers we've seen:
+
+* 3150 new Github stars
+* ~380,000 new NPM downloads
+* 110 new contributors (hey y'all!)
+* ~400 merged PRs
+* dozens of new plugins
+
+## New Gatsby sites launched recently
+
+* Sourcegraph, a startup that helps developers discover and understand code, [relaunched their site on Gatsby](https://about.sourcegraph.com/)
+* The customer data platform startup mParticle [launched their docs site on Gatsby](https://docs.mparticle.com/)
+* The hip new Ocaml-based programming language ReasonML [built their new website on Gatsby](https://reasonml.github.io/)
+* Freelancer web developer [Oliver Benns'](https://twitter.com/oliverbenns/) [portfolio site](https://oliverbenns.com/)
+* [Daniel Stefanovic](https://twitter.com/danistefanovic) launched his online book http://digitalpsychology.io/
+
+## New tutorials! 
+
+* The official tutorial has been growing slowly. The first four parts are finished covering the basics of starting new projects, exploring styling options, how to use Gatsby plugins, and the basics of Gatsby's GraphQL data layer. [Check them out!](/tutorial/)
+* Level Up Tutorials is working on a new Gatsby video tutorial series! It's fantastic! [Check out the first 7 tutorials on YouTube!](https://www.youtube.com/watch?v=b2H7fWhQcdE&list=PLLnpHn493BHHfoINKLELxDch3uJlSapxg). Scott Tolinski also recorded two other videos on Gatsby, his ["first look" at Gatsby](https://www.youtube.com/watch?v=CSemYFzHAtU) shortly after its 1.0 release as well as a [recording of him moving his personal site to Gatsby](https://www.youtube.com/watch?v=xqaThBnesfY).
+* [Giraffe Academy launched a new Gatsby tutorial series](https://www.youtube.com/playlist?list=PLLAZ4kZ9dFpMXuwazIt4mWtTuqOHdjRlk)! 13 tutorials so far covering everything from setting up Gatsby on your computer to building with React components to working with different types of data.
+
+## Notable plugins launched
+
+* The WordPress plugin recently got a big revamp and hit 2.0.0! Checkout the [new example site](https://using-wordpress.gatsbyjs.org/) and the [README](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-source-wordpress)
+* Several new CSS plugins have been added, [Less](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-less), [Emotion](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-emotion), [Styled JSX](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-styled-jsx), [JSS](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-jss), and [Stylus](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-plugin-stylus)!
+* [Tumblbug](https://www.tumblbug.com/), a startup in South Korea, built a [source plugin for Workable](https://github.com/tumblbug/gatsby-source-workable) so they could easily load job listings into their website.
+* [Ryan Florence](https://twitter.com/ryanflorence) built a [source plugin for Firebase](https://github.com/ReactTraining/gatsby-source-firebase) so he could easily query data stored there while rebuilding his company website!
+* [gatsby-remark-katex](https://github.com/gatsbyjs/gatsby/tree/master/packages/gatsby-remark-katex) lets you write math equations in your markdown and [see them beautifully rendered](https://using-remark.gatsbyjs.org/katex/).
+* [gatsby-plugin-purify-css](https://github.com/rongierlach/gatsby-plugin-purify-css) adds drop-in support for removing unused CSS during Gatsby builds! It uses [PurifyCSS](https://github.com/purifycss/purifycss) and can lead to huge reductions in CSS weight.