[Add] Add a new set of websites

README.md

@@ -192,6 +192,7 @@ When learning CS, there are some useful sites you must know to get always inform
 - [Source Making ](https://sourcemaking.com/): Design Patterns & Refactoring
 - [Refactoring Guru](https://refactoring.guru/): Refactoring And Design Patterns
 - [Google Java Style Guide](https://google.github.io/styleguide/javaguide.html): Google Java Style Guide
+- [Rust Coding style](https://github.com/rust-dev-tools/fmt-rfcs): Rust code formatting RFCs and coding style guides
 
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@@ -627,6 +628,7 @@ When learning CS, there are some useful sites you must know to get always inform
 - [Google Code Jam Practice and](https://code.google.com/codejam/past-contests) : past contest problems for practice
 - [HackerEarth - Programming challenges and Developer jobs](https://www.hackerearth.com)
 - [HackerRank](https://www.hackerrank.com) : Practice coding. Compete. Find jobs.
+- [Leetcode](https://leetcode.com/): Practice writing most optimal solutions.
 - [PKU ACM ICPC Practice problems](http://poj.org/problemlist) : Judge online for ACMACPC
 - [Sphere Online Judge (SPOJ)](http://www.spoj.com) : Become a true programming master Learn how to code and build efficient algorithms
 - [Topcoder](https://www.topcoder.com) : Deliver Faster through Crowdsourcing
@@ -653,6 +655,7 @@ When learning CS, there are some useful sites you must know to get always inform
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 ## Video Tutorials
+- [Aditya Verma](https://www.youtube.com/channel/UC5WO7o71wvxMxEtLRkPhiQQ) : Algorithm tutorials playlists by an Indian youtuber Aditya verma.
 - [codedamn](https://www.youtube.com/channel/UCJUmE61LxhbhudzUugHL2wQ/videos) : front end web dev tutorials
 - [Code School](https://www.codeschool.com) : A PluralSight Company and an Interactive learning destination for aspiring and experienced Developers
 - [CodingMadeEasy](https://www.youtube.com/user/CodingMadeEasy/videos) : C++ tutorials