add build blockchain in Go

Author: tuvtran

README.md

@@ -192,6 +192,14 @@ To get started, simply fork this repo. Please refer to [CONTRIBUTING.md](CONTRIB
 * [Create a Real Time Chat App with Golang, Angular 2, and WebSocket](https://www.thepolyglotdeveloper.com/2016/12/create-real-time-chat-app-golang-angular-2-websockets/)
 * [Building Go Web Applications and Microservices Using Gin](https://semaphoreci.com/community/tutorials/building-go-web-applications-and-microservices-using-gin)
 * [How to Use Godog for Behavior-driven Development in Go et started with Godog](https://semaphoreci.com/community/tutorials/how-to-use-godog-for-behavior-driven-development-in-go)
+* Building Blockchain in Go
+  * [Part 1: Basic Prototype](https://jeiwan.cc/posts/building-blockchain-in-go-part-1/)
+  * [Part 2: Proof of Work](https://jeiwan.cc/posts/building-blockchain-in-go-part-2/)
+  * [Part 3: Persistence and CLI](https://jeiwan.cc/posts/building-blockchain-in-go-part-3/)
+  * [Part 4: Transactions 1](https://jeiwan.cc/posts/building-blockchain-in-go-part-4/)
+  * [Part 5: Address](https://jeiwan.cc/posts/building-blockchain-in-go-part-5/)
+  * [Part 6: Transactions 2](https://jeiwan.cc/posts/building-blockchain-in-go-part-6/)
+  * [Part 7: Network](https://jeiwan.cc/posts/building-blockchain-in-go-part-7/)
 
 ## PHP: