update strinngs.xml 

updated till 28th line
updated discription

Complete change
a few translation may look awkward but thats because of 100% translation 
पूर्ण परिवर्तन 
कुछ अनुवाद अजीब लेकिन thats क्योंकि 100% अनुवाद का लग सकता है
Merge pull request #17 from iamashwin26/master

Hindi translation