Merge pull request #74 from AustinChou/master

Cleaner code in EKGraph
Merge pull request #75 from AustinChou/master

Add Radix Sort from https://github.com/PlenipotentSS/RadixSort
Update README.md
Minor code formate.
Merge branch 'master' of https://github.com/EvgenyKarkan/EKAlgorithms