Add max_toot_chars q/a

Author: connyduck

README.md

@@ -43,6 +43,11 @@ Which will include some experimentation with tools to write this FAQ and sync it
 **A:** Just select the account, then log out.
 ##
 
+**Q:** My instance has a custom character limit, but Tusky allows only 500 characters
+
+**A:** Your instance needs to make this information public via the `max_toot_chars` property of the `/api/v1/instance` endpoint. Contact your admin to change this. See e.g. here https://pleroma.site/api/v1/instance for a config that works with Tusky.
+##
+
 **Q:** Will you block more domains than the Gab related ones?
 
 **A:** The size of Gab is pretty unique and we have no time to research smaller instances, so most likely no, but it's always a possibility.
@@ -57,10 +62,6 @@ Which will include some experimentation with tools to write this FAQ and sync it
 **A:**
 ##
 
-**Q:**
-**A:**
-##
-
 Template:
 **Q:**
 **A:**