chore: add cjs to ignore

RIP21 · RIP21 · commit 3990a8ff8cf3 · 2020-07-31T01:22:17.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -59,4 +59,4 @@ typings/
 
 .idea
 .history
-!/cjs/
+cjs

-Original file line number
+Diff line change
 .idea
 .history
 -!/cjs/
 +cjs