Merge pull request #638 from thomasyu888/leaderboard-renders

Add in some information about the leaderboard renderers

articles/evaluation_queues.md

@@ -194,6 +194,17 @@ Clicking **Refresh Columns** will add these default columns.
 
 <img style="width: 80%;" src="/assets/images/leaderboard_columns.png">
 
+#### Leaderboard renderers
+The appearance of columns in a leaderboard can be modified by changing the renderer used. You can change this by changing the value for the 'Renderer' attribute when configuring the leaderboard widget. These are the available renderers:
+
+* userid: Renders a Synapse user ID to a Synapse user profile badge
+* date: Renders epochtime in milliseconds to local time.  The user can also select to show dates in UTC (in user settings) rather than local time.
+* epochdate: Deprecated
+* markdown link: Renders text added as Synapse Wiki Markdown
+* synapseid: Renders any Synapse Entity ID to a clickable Synapse entity badge
+* cancelcontrol: Renders a button that allows for the cancellation of submissions
+
+
 ### Saving Leaderboard Widget
 
 If you are happy with your leaderboard configurations, save both the configurations and the wiki page to see the Leaderboard.