Update faq.md

Added period after 8.1 (and changed back to 8.0, per information given by the developers).

Also added section for the admin area and linking out to the newly created Access admin page.

Author: avoidthehack

docs/faq.md

@@ -20,7 +20,7 @@ important links to easy accessible and hosted on your own web-server or web-ho
 
 ## What do I need to use LinkStack?
 
-To host your own instance of LinkStack, you will need a web server running at least PHP 8.1
+To host your own instance of LinkStack, you will need a web server running at least PHP 8.0.
 
 
 ## Can I still use LinkStack if I don’t have a web server?
@@ -39,6 +39,10 @@ The project offers various tiers of [hosted instances](https://linkstack.org/hos
 
 LinkStack can be updated from the administrator control panel (if you are an admin). Updates can be installed manually or handled by the automatic updater.
 
+## After installing LinkStack, how do I access the admin area?
+
+After installation, you can access the administrator panel by visiting the `/login` page and signing in with the administrator credentials set when using the setup wizard. See also the [admin access](/access-admin) page.
+
 ## How can I contribute to LinkStack?
 
 For source code contributions and to report bugs/security issues, please [visit the GitHub](https://github.com/LinkStackOrg/LinkStack) repository.