Update JSDoc for pbjs.enableAnalytics (#1565)

src/prebid.js

@@ -611,8 +611,17 @@ $$PREBID_GLOBAL$$.loadScript = function (tagSrc, callback, useCache) {
 };
 
 /**
- * Will enable sending a prebid.js to data provider specified
- * @param  {Object} config object {provider : 'string', options : {}}
+ * Enable sending analytics data to the analytics provider of your
+ * choice.
+ *
+ * For usage, see [Integrate with the Prebid Analytics
+ * API](http://prebid.org/dev-docs/integrate-with-the-prebid-analytics-api.html).
+ *
+ * For a list of supported analytics adapters, see [Analytics for
+ * Prebid](http://prebid.org/overview/analytics.html).
+ * @param  {Object} config
+ * @param {string} config.provider The name of the provider, e.g., `"ga"` for Google Analytics.
+ * @param {Object} config.options The options for this particular analytics adapter.  This will likely vary between adapters.
  */
 $$PREBID_GLOBAL$$.enableAnalytics = function (config) {
   if (config && !utils.isEmpty(config)) {