Add yarn.lock to .gitignore

wooorm · wooorm · commit 6249dac8d358 · 2018-04-30T19:28:59.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -5,3 +5,4 @@ coverage/
 node_modules/
 unist-util-is.js
 unist-util-is.min.js
+yarn.lock
