Add raineorshine/solidity-by-example repo

Author: bkrem

README.md

@@ -53,6 +53,7 @@ Please check the [contribution guidelines](CONTRIBUTING.md) for info on formatti
 - [Solidity By Example](http://solidity.readthedocs.io/en/latest/solidity-by-example.html) - Contract examples from the official docs.
 - [solidity-examples](https://github.com/chriseth/solidity-examples) - Examples which provide a starting point for data structures such as heaps and queues.
 - [Solidity idiosyncrasies](https://github.com/miguelmota/solidity-idiosyncrasies) - Common gotchas, pitfalls, limitations, and idiosyncrasies.
+- [raineorshine/solidity-by-example](https://github.com/raineorshine/solidity-by-example) - A collection of short yet fully-functional contracts that demonstrate language features.
 
 
 ## Libraries