Add note on purpose of the fork

README.md

@@ -1,3 +1,20 @@
+# Fork
+
+This fork is meant to provide npm packages and a docker image until PRs are merged upstream.
+
+Currently waiting for:
+
+- https://github.com/transloadit/uppy/pull/4551
+- https://github.com/transloadit/uppy/pull/4553
+- https://github.com/transloadit/uppy/pull/4554
+- https://github.com/transloadit/uppy/pull/4555
+- https://github.com/transloadit/uppy/pull/4556
+- https://github.com/transloadit/uppy/pull/4561
+
+
+Moreover, we have added a WebDAV plugin, which is has not been submitted yet, as it depends on all of the PRs above.
+We plan to submit it as soon as those PRs (or alternative solutions) have been merged.
+
 # [Uppy](https://uppy.io)
 
 <img src="https://uppy.io/img/logo.svg" width="120" alt="Uppy logo: a smiling puppy above a pink upwards arrow" align="right">