Add docblock

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

modules/glmv.js

@@ -1,6 +1,10 @@
 let slideShowInterval = null
 let grabHotspot = null
 
+/**
+ * Disables hiding of various child items 
+ * once model has loaded
+ */
 modelLoaded = function() {
     $('.awaiting-model').css('display', 'flex').removeClass('awaiting-model')
 }