Currently the best option is to create a Standalone Note in the collection. If you sort the collection by Title, choosing an appropriate first character for the note (eg *) can be used to make the note appear at the top of the collection in the middle pane.
But I think it would be good for collections to have a more formal Description, that would automatically appear at the top of the collection.
Notes and also tags, although the option suggested by @tim820 of having > a more formal Description, that would automatically appear at the top of the collection. would be great too
But I think it would be good for collections to have a more formal Description, that would automatically appear at the top of the collection.
> a more formal Description, that would automatically appear at the top of the collection.
would be great too