little fixes

lib/pleroma/web/admin_api/admin_api_controller.ex

@@ -400,7 +400,7 @@ def email_invite(%{assigns: %{user: user}} = conn, %{"email" => email} = params)
     end
   end
 
-  @doc "Get a account registeration invite token (base64 string)"
+  @doc "Get an account registration invite token"
   def get_invite_token(conn, params) do
     opts = %{}