Merge pull request jwasham#550 from MikeBurnsDev/master

Added a Practice Operations link to Bitwise operations section

README.md

@@ -652,6 +652,7 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
         - [ ] [The Bit Twiddler](https://bits.stephan-brumme.com/)
         - [ ] [The Bit Twiddler Interactive](https://bits.stephan-brumme.com/interactive.html)
         - [ ] [Bit Hacks (video)](https://www.youtube.com/watch?v=ZusiKXcz_ac)
+		- [ ] [Practice Operations](https://pconrad.github.io/old_pconrad_cs16/topics/bitOps/) 
     - [ ] 2s and 1s complement
         - [Binary: Plusses & Minuses (Why We Use Two's Complement) (video)](https://www.youtube.com/watch?v=lKTsv6iVxV4)
         - [1s Complement](https://en.wikipedia.org/wiki/Ones%27_complement)