use parameters instead of field group (#411)

page had extra `::` rendered

Author: FajitaOfTreason

streamerbot/3.api/2.triggers/twitch/channel-reward/reward-redemption.md

@@ -43,16 +43,18 @@ variables:
 commonVariables:
   - TwitchBroadcaster
   - TwitchUser
----
+parameters:
+  - name: Reward
+    type: Select
+    required: true
+    default: Any
+    description: |
+      Select a configured Twitch reward
+
+      - Select `Any` to trigger on **any reward**
 
-## Parameters
-::field-group
-  ::field{name=Reward type=Select required}
-    Select a configured Twitch reward
-    - Select `Any` to trigger on **any reward**
+      ::tip
+      You can quickly register a new reward by clicking the `Create Reward` button!
+      ::
+---
 
-    ::tip
-    You can quickly register a new reward by clicking the `Create Reward` button!
-    ::
-  ::
-::