Add AnkiHub and AnkiCollab to the collaboration FAQ? (#29)

* Update how-can-i-work-with-someone-else-to-create-a-deck.md

* Update how-can-i-work-with-someone-else-to-create-a-deck.md

* Update src/how-can-i-work-with-someone-else-to-create-a-deck.md (dae)

src/how-can-i-work-with-someone-else-to-create-a-deck.md

@@ -10,4 +10,6 @@ If you are creating cards that contain images or sounds, it gets more complicate
 
 Using a separate deck for each unit of work makes it easier to export the content separately, instead of sharing everything that's been created so far (which would lead to large files). After other users import the content, they can move it to another deck if they wish, using the computer version.
 
-Advanced users can skip the separate deck step by instead creating a filtered deck using something like 'added:7' to only include cards added in the last 7 days, and then exporting that filtered deck to share.
+Advanced users can skip the separate deck step by instead creating a filtered deck using something like 'added:7' to only include cards added in the last 7 days, and then exporting that filtered deck to share.
+
+There are also add-ons available that support collaboration, such as [AnkiHub](https://www.ankihub.net) or [AnkiCollab](https://www.ankicollab.com/). Additional add-ons offering similar functionality can be found on the [shared add-ons page](https://ankiweb.net/shared/addons).