Hello World - Chrome Extension

Here are two introduction tutorials (beginner to intermediate level) I wrote on the chrome extension.

http://www.codeproject.com/Tips/832199/Chrome-Extension-Save-URLs-of-All-Open-Tabs-in-a-N
http://www.codeproject.com/Tips/826733/Chrome-Extension-How-to-Use-Commands-and-Backgroun

I won an International Women Hackathon organised by Hackearth in March 2015.
Here is what it does :

Here is the code for this https://github.com/deepika087/HackerEarth_Hackathon_LinkedInTimeLined