Add Wagtail Conndensed Inline (#50)

README.md

@@ -147,6 +147,7 @@ Awesome Wagtail [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38
 - [Wagtail Sharing](https://github.com/cfpb/wagtail-sharing) – Easier sharing of Wagtail drafts.
 - [Wagtail Postgres Search Backend](https://github.com/leukeleu/wagtail-pg-search-backend) - PostgreSQL full text search backend for Wagtail CMS.
 - [Wagtail Gridder](https://github.com/wharton/wagtailgridder) - Grid card layout similar to Google image search results, with an expanded area for card details.
+- [Wagtail Condensed Inline Panel](https://github.com/wagtail/wagtail-condensedinlinepanel) - Drop-in replacement for Wagtail's InlinePanel suited for large number of inlines (collapsible with drag and drop support).
 
 ## Tools