Vim Playground Added (#10711)

* Vim Playground Added

* Update free-programming-playgrounds.md

* move to go

* Update more/free-programming-playgrounds.md

---------

Co-authored-by: Eric Hellman <eric@hellman.net>

more/free-programming-playgrounds.md

@@ -159,6 +159,7 @@
 
 * [GO Lang Compiler](https://www.codinguru.online/compiler/go)
 * [Go Playground](https://play.golang.org)
+* [Go-Vim](https://go-vim.appspot.com)
 * [SoloLearn](https://code.sololearn.com/go)