added travis ci badge to readme

Author: jaredpetersen

README.md

@@ -1,15 +1,14 @@
-codeprinter
-============
+# codeprinter
+[![Build Status](https://travis-ci.org/jaredpetersen/codeprinter.svg?branch=master)](https://travis-ci.org/jaredpetersen/codeprinter)
+
 codeprinter's goal is pretty self-explanatory: to make it easier to print out code on paper. Many IDE's either don't allow you to print or have some weird quirks like adding unnecessary headers and footers, not allowing you to change your font size, or not providing syntax highlighting on your printout.
 
 codeprinter makes it easy. Simply copy your code into the text box, select your desired font, font size, syntax highlighting theme, and whether or not you would like line numbers and then hit print.
 
-Screenshots
-============
+## Screenshots
 ![Paste your code](https://i.imgur.com/adhS1Cz.png)
 ![Change your font size](https://i.imgur.com/TlgIxpi.png)
 ![Print your code](https://i.imgur.com/IYHqP0z.png)
 
-How to Contribute
-============
+## How to Contribute
 Find a bug? Want to request a new feature? Awesome! Create an [issue](https://github.com/jaredpetersen/codeprinter/issues) and/or submit a [pull request](https://github.com/jaredpetersen/codeprinter/pulls). Just want to show your support for the project? [Buy me a coffee](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=JGJAC7UKRAB9J&lc=US&item_name=CodePrinter%20%2d%20Buy%20me%20a%20Coffee&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donate_SM%2egif%3aNonHosted).