Update quarters.mdx

src/docs/quarters.mdx

@@ -23,12 +23,16 @@ If you cannot get access to a flint you can use `/q pos1` and `/q pos2` to selec
 
 With your cuboids selected run the command `/q create`, if you have the necessary permissions this will turn all your selected cuboids into a quarter. These cuboids will all share a particle outline and permissions.
 
-Remain aware that any cuboids added will be validated before creation to ensure that they are in a valid location. If you are having issues with creating a new quarter check the below:
+##Quarter prerequisites
+
+The following requirements must be met in order to create a quarter:
 
 - The quarter is entirely within a single town
 - There is no wilderness within any of the cuboid's bounds
 - Your selected cuboids do not overlap with any pre-existing cuboids
 
+An already create quarter will be deleted if any of the above requirements are no longer true, for example if the underlying land is unclaimed or town is deleted.
+
 ## Permission management
 
 As opposed to [plots](https://earthmc.net/docs/town#plots), you can *not* change individual build/destroy/switch/item per quarter. Instead, you can chose to trust or not trust other players with full access to the quarter. Commands `/q trust add` or `/q trust remove` is used to manage who to trust with the quarter. Furthermore, you may change quarter type which also change what type of permissions players in the quarter have. Read more about plot types below.