rchaganti/d3-helloworld.go

## d3-helloworld.go
In the first exercise, update the hello world program you create in the [last part](https://ravichaganti.com/blog/get-set-go-first-program/)
to add a variable `fName` and initialize it with your name as the value.
Finally, print the statement Hello, fName to the screen.
	In the first exercise, update the hello world program you create in the [last part](https://ravichaganti.com/blog/get-set-go-first-program/)
	to add a variable `fName` and initialize it with your name as the value.
	Finally, print the statement Hello, fName to the screen.