feat: hello world app

music-player/go.mod

@@ -0,0 +1,3 @@
+module fela.space/music-player
+
+go 1.15

music-player/music-player.go

@@ -0,0 +1,7 @@
+package main
+
+import "fmt"
+
+func main() {
+  fmt.Println("Hello world!")
+}