adding sites and refs to practices

README.md

@@ -192,14 +192,17 @@ But knowing the stuff will help you become better! :muscle:*
 - :link: [CodeChef](https://www.codechef.com)
 - :link: [CodinGame](https://www.codingame.com/)
 - :link: [Cs Academy](https://csacademy.com/)
-- :link: [HackerRank](https://hackerrank.com/)
-- :link: [Spoj](https://spoj.com/)
-- :link: [HackerEarth](https://hackerearth.com/)
-- :link: [TopCoder](https://www.topcoder.com/)
 - :link: [Codewars](http://codewars.com/)
+- :link: [Dot Factory](https://www.dotfactory.com/)
 - :link: [Exercism](http://www.exercism.io/)
 - :link: [CodeFights](https://codefights.com/)
-- :link: [Project Euler](https://projecteuler.net/)
-- :link: [LeetCode](https://leetcode.com/)
 - :link: [InterviewBit](https://www.interviewbit.com/)
+- :link: [HackerEarth](https://hackerearth.com/)
+- :link: [HackerRank](https://hackerrank.com/)
+- :link: [LeetCode](https://leetcode.com/)
+- :link: [Project Euler](https://projecteuler.net/)
+- :link: [Spoj](https://spoj.com/)
+- :link: [Share Code](https://www.sharecode.io/)
+- :link: [TopCoder](https://www.topcoder.com/)
+