updated validate config

lib/JsonLdSolr.js

@@ -9,7 +9,7 @@ class JsonLdSolr {
   }
 
   validateConfig() {
-    // Dont you hate not knowing what the configuration needs?
+    // Validate the configuration needs.
     _.each(this.config, (config) => {
       assert.strictEqual(_.isObject(config['entryPoints']), true, 'missing entryPoints in configuration');
       _.each(config, function (entryPoints) {