fix: match snippet to website

rhnvrm · rhnvrm · commit 12973bc66f39 · 2019-10-24T03:35:13.000+05:30
diff --git a/doc/play/hello.go b/doc/play/hello.go
@@ -1,3 +1,5 @@
+// You can edit this code!
+// Click here and start typing.
 package main
 
 import "fmt"
