Small Typo

I was going to fork this on Github and push a quick fix, but I couldn’t find a recent version so I’ll fire it up here. On the tooltip text for “Try to set as Parent” the words “hierarchical” (missing h) and “types” (missing e) are spelled incorrectly.

Thanks for the great plugin.

https://wordpress.org/plugins/gravity-forms-custom-post-types/