Update faq.md to add backup advice.

docs/support/faq.md

@@ -26,6 +26,10 @@ Since Overseerr has an almost native app experience when installed as a Progress
 
 Out of the box, Overseerr already fulfills most of the [PWA install criteria](https://web.dev/install-criteria/). You simply need to make sure that your Overseerr instance is being served over HTTPS (e.g., via a [reverse proxy](../extending-overseerr/reverse-proxy.md)).
 
+### Where is my Overseerr data stored?
+Overseerr keeps track of users, requests, and configuration settings in database files, you can find them located within your container's filesystem at `app/config/db/'
+If you need to manually backup your data, the 3 files in there contain it. Additionally, changes made to these files such as replacement require you to restart the container before appearing.
+
 ### Overseerr is amazing! But it is not translated in my language yet! Can I help with translations?
 
 You sure can! We are using [Weblate](https://hosted.weblate.org/engage/overseerr/) for translations. If your language is not listed, please [open a feature request on GitHub](https://github.com/sct/overseerr/issues/new/choose).