Fix loadMore function description
Fix loadMore function description

As far as I saw studying the code and debugging the plugin WidgetFeed.loadMore function is used to select events for a month, so I updated the description comment for this function, which said that the method was used to load the data from the datastore, but the OnUpdate() callback function of the datastore is the function beginning in the line 368, and the datastore actually contains the URL name, but not the data contained in the file referenced by the URL.

BuildFire/eventsFeedPlugin,BuildFire/eventsFeedPlugin