Fix minor formatting issue in FAQ

This just fixes a small issue I noticed reading the docs: the two 'scenarios' listed in the scaling section end up showing up as a numbered list of five items, instead of the desired two items + their descriptions.

docs/about/faq.md

@@ -73,12 +73,12 @@ of Headscale:
 
 1. An environment with 1000 servers
 
-   - they rarely "move" (change their endpoints)
-   - new nodes are added rarely
+     - they rarely "move" (change their endpoints)
+     - new nodes are added rarely
 
 2. An environment with 80 laptops/phones (end user devices)
 
-   - nodes move often, e.g. switching from home to office
+     - nodes move often, e.g. switching from home to office
 
 Headscale calculates a map of all nodes that need to talk to each other,
 creating this "world map" requires a lot of CPU time. When an event that