Update README.md

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README.md

@@ -13,7 +13,7 @@ Keep track of development news:
 
 :bookmark_tabs: **Table of Contents:** [Quick Start](#quick-start) · [Vision](#vision) · [App](#app) · [Scraper](#scraper) · [Commands](#available-commands) · [Contributing](#contributing) · [License](#copyright--license) · [Questions?](#questions)
 
-##:zap: Quick Start
+## :zap: Quick Start
 
 Unless you wish to contribute to the project, I recommend using the hosted version at [devdocs.io](https://devdocs.io). It's up-to-date and works offline out-of-the-box.
 
@@ -46,7 +46,7 @@ docker build -t thibaut/devdocs .
 docker run --name devdocs -d -p 9292:9292 thibaut/devdocs
 ```
 
-##:trophy: Vision
+## :trophy: Vision
 
 DevDocs aims to make reading and searching reference documentation fast, easy and enjoyable.
 
@@ -54,7 +54,7 @@ The app's main goals are to: keep load times as short as possible; improve the q
 
 :bulb: **Note:** DevDocs is neither a programming guide nor a search engine. All our content is pulled from third-party sources and the project doesn't intend to compete with full-text search engines. Its backbone is metadata; each piece of content is identified by a unique, "obvious" and short string. Tutorials, guides and other content that don't meet this requirement are outside the scope of the project.
 
-##:iphone: App
+## :iphone: App
 
 The web app is all client-side JavaScript, written in [CoffeeScript](http://coffeescript.org), and powered by a small [Sinatra](http://www.sinatrarb.com)/[Sprockets](https://github.com/rails/sprockets) application. It relies on files generated by the [scraper](#scraper).
 
@@ -75,7 +75,7 @@ DevDocs being a developer tool, the browser requirements are high:
 
 This allows the code to take advantage of the latest DOM and HTML5 APIs and make developing DevDocs a lot more fun!
 
-##:mag_right: Scraper
+## :mag_right: Scraper
 
 The scraper is responsible for generating the documentation and index files(metadata) used by the [app](#app). It's written in Ruby under the `Docs` module.
 
@@ -95,7 +95,7 @@ The end result is a set of normalized HTML partials and two JSON files (index +
 
 More information about scrapers and filters is available on the [wiki](https://github.com/freeCodeCamp/devdocs/wiki).
 
-##:computer: Available Commands
+## :computer: Available Commands
 
 The command-line interface uses [Thor](http://whatisthor.com). To see all commands and options, run `thor list` from the project's root.
 
@@ -131,13 +131,13 @@ thor assets:clean   # Clean old assets
 
 If multiple versions of Ruby are installed on your system, commands must be run through `bundle exec`.
 
-##:bar_chart: Contributing
+## :bar_chart: Contributing
 
 Contributions are welcome. Please read the [contributing guidelines](https://github.com/freeCodeCamp/devdocs/blob/master/CONTRIBUTING.md).
 
 DevDocs's own documentation is available on the [wiki](https://github.com/freeCodeCamp/devdocs/wiki).
 
-##:clipboard: Copyright / License
+## :clipboard: Copyright / License
 
 Copyright 2013-2018 Thibaut Courouble and [other contributors](https://github.com/freeCodeCamp/devdocs/graphs/contributors)
 
@@ -147,6 +147,6 @@ Please do not use the name DevDocs to endorse or promote products derived from t
 
 I also wish that any documentation file generated using this software be attributed to DevDocs. Let's be fair to all contributors by giving credit where credit's due. Thanks!
 
-##:email: Questions?
+## :email: Questions?
 
 If you have any questions, please feel free to ask them on the [mailing list](https://groups.google.com/d/forum/devdocs).