Add hint to rules

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs

@@ -129,16 +129,27 @@ defmodule Pleroma.Web.MastodonAPI.InstanceControllerTest do
   end
 
   test "get instance rules", %{conn: conn} do
-    Rule.create(%{text: "Example rule"})
-    Rule.create(%{text: "Second rule"})
-    Rule.create(%{text: "Third rule"})
+    Rule.create(%{text: "Example rule", hint: "Rule description", priority: 1})
+    Rule.create(%{text: "Third rule", priority: 2})
+    Rule.create(%{text: "Second rule", priority: 1})
 
     conn = get(conn, "/api/v1/instance")
 
     assert result = json_response_and_validate_schema(conn, 200)
 
-    rules = result["rules"]
-
-    assert length(rules) == 3
+    assert [
+             %{
+               "text" => "Example rule",
+               "hint" => "Rule description"
+             },
+             %{
+               "text" => "Second rule",
+               "hint" => ""
+             },
+             %{
+               "text" => "Third rule",
+               "hint" => ""
+             }
+           ] = result["rules"]
   end
 end