Merge pull request '[update] 'Configuration' article' (#78) from GS-2739 into master

Reviewed-on: https://git.webix.io/Servers/gantt-docs/pulls/78

Author: Maria Rudenko

data/desktop/common_configuration.md

@@ -6,6 +6,8 @@ To gain the desired look for the Gantt chart, dhtmlxGantt provides 2 objects:
 - [gantt.config](api/refs/gantt_props.md) - configuration options for dates, scale, controls etc.
 - [gantt.templates](api/refs/gantt_templates.md) - formatting templates for dates and labels used in the Gantt chart.
 
+
+
 'gantt.config' object
 ------------------------
 All the configuration options are declared in the **gantt.config** object. 
@@ -14,10 +16,9 @@ To set the desired option, just write it as it's stated in this documentation.
 
 Beware, configuration options should go before the code line with dhtmlxGantt initialization. 
 
-
 ~~~js
 gantt.scales = [
-    { unit: "year", step: 1, format: "%Y" }
+	{ unit: "year", step: 1, format: "%Y" }
 ];
 
 gantt.init("gantt_here");
@@ -29,6 +30,8 @@ See the full list of the **gantt.config** properties in  ["Gantt API:Properties"
 	03_scales/02_month_days.html
 }}
 
+
+
 'gantt.templates' object
 -------------------------------------
 
@@ -38,13 +41,12 @@ To define a template, just write it as it's stated in this documentation. Rememb
 
 
 ~~~js
-gantt.templates.task_text=function(start,end,task){
-	return "<b>Text:</b> "+task.text+",<b> Holders:</b> "+task.users;
-};
+gantt.templates.task_text =
+	(start, end, task) => `<b>Text:</b> ${task.text},<b> Holders:</b> ${task.users}`;
+
 gantt.init("gantt_here");
 ~~~
 
-
 <img src="desktop/gantt_templates.png"/>
 
 See the full list of available templates in the [Gantt API:Templates](api/refs/gantt_templates.md) section.