fix: details in faq

Author: polymo1

docs/faq.mdx

@@ -50,7 +50,9 @@ Go to the homescreen for it to finish. We don't know why this happens, but it mi
 
 ### Can I sign more than 3 apps to be active?
 
-No, as that’s an iOS and developer account limitation.
+No, as that’s an iOS and developer account limitation. Apple only allows 3 apps to be installed using a free Apple Developer account.
+
+To remove this restriction (and also get a 365 day expiry), you can pay for a $99/year Apple Developer account.
 
 ### I have a problem or bug or request for a feature or quality of life improvement