fix typo

Author: vertyco

assistant/commands/admin.py

@@ -1984,7 +1984,7 @@ async def endpoint_override(self, ctx: commands.Context, endpoint: str = None):
 
         **Notes**
         - Using a custom endpoint is not supported!
-        - Using an endpoing override will negate model settings like temperature and custom funcitons
+        - Using an endpoing override will negate model settings like temperature and custom functions
         """
         if self.db.endpoint_override == endpoint:
             return await ctx.send(_("Endpoint is already set to **{}**").format(endpoint))