update go module path with /v2 suffix

Atrox · Atrox · commit f18f2ff93749 · 2018-08-16T14:21:01.000+02:00
diff --git a/go.mod b/go.mod
@@ -1 +1 @@
-module github.com/atrox/haikunatorgo
+module github.com/atrox/haikunatorgo/v2

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-module github.com/atrox/haikunatorgo`
	`1`	`+module github.com/atrox/haikunatorgo/v2`