Improvements to blog post, and add self to authors.yml

**what is the change?:**
- Add self to contributors so my name turns into a link
- Use backticks for code-ish things
- Second header to ##, not #
- Change production mode link to the new address per @bvaughn's comment
- Update changelog with fixes from facebook#9951

**why make this change?:**
Make things more clear and accurate.

**test plan:**
Visual inspect - @flarnie will paste an image of how it appears in the
actual docs.

**issue:**
facebook#9398

docs/_data/authors.yml

@@ -16,6 +16,9 @@ Daniel15:
 fisherwebdev:
   name: Bill Fisher
   url: https://twitter.com/fisherwebdev
+flarnie:
+  name: Flarnie Marchan
+  url: https://twitter.com/ProbablyFlarnie
 gaearon:
   name: Dan Abramov
   url: https://twitter.com/dan_abramov

docs/_posts/2017-06-13-react-v15.6.0.md

@@ -7,7 +7,7 @@ Today we are releasing React 15.6.0. As we prepare for React 16.0, we have been
 
 ## Improving Inputs
 
-In React 15.6.0 the 'onChange' event for inputs is a little bit more reliable and handles more edge cases, including the following:
+In React 15.6.0 the `onChange` event for inputs is a little bit more reliable and handles more edge cases, including the following:
 
 * not firing when radio button is clicked but not changed ([issue 1471](https://github.com/facebook/react/issues/1471))
 * changing an input of type 'range' with the arrow keys ([issue 554](https://github.com/facebook/react/issues/554))
@@ -18,11 +18,11 @@ In React 15.6.0 the 'onChange' event for inputs is a little bit more reliable an
 
 Thanks to [Jason Quense](https://github.com/jquense) and everyone who helped out on those issues and PRs.
 
-# Downgrading Deprecation Warnings
+## Downgrading Deprecation Warnings
 
 We are also including a couple of new warnings for upcoming deprecations. These should not affect most users, and for more details see the changelog below.
 
-After the last release, we got valuable community feedback that deprecation warnings were causing noise and failing tests. **In React 15.6, we have downgraded deprecation warnings to use 'console.warn' instead of 'console.error'.** Our other warnings will still use 'console.error' because they surface urgent issues which could lead to bugs. Unlike our other warnings, deprecation warnings can be fixed over time and won't cause problems in your app if shipped. We believe that downgrading the urgency of deprecation warnings will make your next update easier. Thanks to everyone who was involved in the discussion of this change.
+After the last release, we got valuable community feedback that deprecation warnings were causing noise and failing tests. **In React 15.6, we have downgraded deprecation warnings to use `console.warn` instead of `console.error`.** Our other warnings will still use `console.error` because they surface urgent issues which could lead to bugs. Unlike our other warnings, deprecation warnings can be fixed over time and won't cause problems in your app if shipped. We believe that downgrading the urgency of deprecation warnings will make your next update easier. Thanks to everyone who was involved in the discussion of this change.
 
 ---
 
@@ -44,7 +44,7 @@ npm install --save react@^15.6.0 react-dom@^15.6.0
 
 We recommend using a bundler like [webpack](https://webpack.js.org/) or [Browserify](http://browserify.org/) so you can write modular code and bundle it together into small packages to optimize load time.
 
-Remember that by default, React runs extra checks and provides helpful warnings in development mode. When deploying your app, make sure to [compile it in production mode](/react/docs/installation.html#development-and-production-versions).
+Remember that by default, React runs extra checks and provides helpful warnings in development mode. When deploying your app, make sure to [use the production build](https://facebook.github.io/react/docs/optimizing-performance.html#use-the-production-build).
 
 In case you don't use a bundler, we also provide pre-built bundles in the npm packages which you can [include as script tags](/react/docs/installation.html#using-a-cdn) on your page:
 
@@ -71,21 +71,16 @@ We've also published version `15.6.0` of `react` and `react-dom` on npm, and the
 
 ### React
 
-* Fix bug where inputs mutated value on type conversion. ([@nhunzaker](https://github.com/mhunzaker) in [#9806](https://github.com/facebook/react/pull/9806))
-* Added a deprecation warning for `React.createClass`. Points users to create-react-class instead. ([@flarnie](https://github.com/flarnie) in [#9771](https://github.com/facebook/react/pull/9771))
 * Downgrade deprecation warnings to use `console.warn` instead of `console.error`. ([@flarnie](https://github.com/flarnie) in [#9753](https://github.com/facebook/react/pull/9753))
-* Fix issue where environment variable was not being transformed by browserify. ([@mridgway](https://github.com/mridgway) in [#9642](https://github.com/facebook/react/pull/9642))
-* Add deprecation warnings and separate module for React.DOM factory helpers. ([@nhunzaker](https://github.com/nhunzaker) in [#8356](https://github.com/facebook/react/pull/8356))
-* Fix bug where controlled number input mistakenly allowed period.  ([@nhunzaker](https://github.com/nhunzaker) in [#9584](https://github.com/facebook/react/pull/9584))
-* Remove warning for CSS variables. ([@aweary](https://github.com/aweary) in [#9302](https://github.com/facebook/react/pull/9302))
-* Fix bug where performance entries were being cleared.  ([@chrisui](https://github.com/chrisui) in [#9451](https://github.com/facebook/react/pull/9451))
-* Stop adding 'px' to numbers passed for unitless CSS Grid attributes.  ([@ericsakmar](https://github.com/ericsakmar) in [#9185](https://github.com/facebook/react/pull/9185))
+* Add a deprecation warning for `React.createClass`. Points users to `create-react-class` instead. ([@flarnie](https://github.com/flarnie) in [#9771](https://github.com/facebook/react/pull/9771))
+* Add deprecation warnings and separate module for `React.DOM` factory helpers. ([@nhunzaker](https://github.com/nhunzaker) in [#8356](https://github.com/facebook/react/pull/8356))
 * Warn for deprecation of `React.createMixin` helper, which was never used. ([@aweary](https://github.com/aweary) in [#8853](https://github.com/facebook/react/pull/8853))
 
 ### React DOM
 
-* Fix issues with 'onChange' not firing properly for some inputs. ([@jquense](https://github.com/jquense) in [#8575](https://github.com/facebook/react/pull/8575))
-
-### React Addons
-
-* Remove PropTypes dependency from ReactLink.  ([@gaearon](https://github.com/gaearon) in [#9766](https://github.com/facebook/react/pull/9766))
+* Add support for CSS variables in `style` attribute. ([@aweary](https://github.com/aweary) in [#9302](https://github.com/facebook/react/pull/9302))
+* Add support for CSS Grid style properties. ([@ericsakmar](https://github.com/ericsakmar) in [#9185](https://github.com/facebook/react/pull/9185))
+* Fix bug where inputs mutated value on type conversion. ([@nhunzaker](https://github.com/mhunzaker) in [#9806](https://github.com/facebook/react/pull/9806))
+* Fix issues with `onChange` not firing properly for some inputs. ([@jquense](https://github.com/jquense) in [#8575](https://github.com/facebook/react/pull/8575))
+* Fix bug where controlled number input mistakenly allowed period. ([@nhunzaker](https://github.com/nhunzaker) in [#9584](https://github.com/facebook/react/pull/9584))
+* Fix bug where performance entries were being cleared. ([@chrisui](https://github.com/chrisui) in [#9451](https://github.com/facebook/react/pull/9451))