update go

Author: tot0p

go/main.go go/hello.go

@@ -0,0 +1,17 @@
+# Golang Hello World
+
+golang is a programming language that is developed by Google.
+
+you can found golang at: [https://golang.org/](https://golang.org/)
+
+# run the program
+
+you need to install golang first.
+
+you can found how to install golang at: [https://golang.org/dl/](https://golang.org/dl/)
+
+for run the program, you can use the command:
+
+```
+go run hello.go
+```