[fix] broken links to treegrid docs

Author: mafanya23

docker/redirects.conf

@@ -1799,7 +1799,7 @@
 /treegrid/api/treegrid_removespan_method/  /suite/grid/api/grid_removespan_method/;
 /treegrid/api/treegrid_scroll_method/  /suite/grid/api/grid_scroll_method/;
 /treegrid/api/treegrid_scrollto_method/  /suite/grid/api/grid_scrollto_method/;
-/treegrid/api/treegrid_setcolumns_method/  /suite/grid/api/grid_setcolumns_method/;  
+/treegrid/api/treegrid_setcolumns_method/  /suite/grid/api/grid_setcolumns_method/;
 /treegrid/api/treegrid_showcolumn_method/  /suite/grid/api/grid_showcolumn_method/;
 /treegrid/api/treegrid_showrow_method/  /suite/grid/api/grid_showrow_method/;
 /treegrid/api/treegrid_ungroup_method/  /suite/migration/#data-grouping;

docs/pagination/init.md

@@ -85,7 +85,7 @@ Add two containers:
 
 ## Initialize a related widget
 
-{{note DHTMLX Pagination can be used in conjunction with data components like [List](list.md), [DataView](dataview.md), [Tree](tree.md), [Grid](grid.md), or [TreeGrid](/treegrid/).}}
+{{note DHTMLX Pagination can be used in conjunction with data components like [List](list.md), [DataView](dataview.md), [Tree](tree.md), [Grid](grid.md), or [TreeGrid](/grid/treegrid_mode/).}}
 
 Choose the widget you want to link to the Pagination component, for example, DHTMLX List. 
 

docs/selection/index.md

@@ -42,12 +42,12 @@ See the full lists of the methods of the Selection object you can use to manage
 
 - [Grid. Selection methods](grid/api/api_overview.md#selection-methods)
 
-- [TreeGrid. Selection methods](treegrid/api/api_overview.md#selection-methods) 
+- [TreeGrid. Selection methods](grid/api/api_overview.md#selection-methods) 
 
 ### Events
 
 See the full lists of the events of the Selection object you can use while working with the selection of cells in **Grid**, **TreeGrid**:
 
 - [Grid. Selection events](grid/api/api_overview.md#selection-events)
 
-- [TreeGrid. Selection events](treegrid/api/api_overview.md#selection-events) 
+- [TreeGrid. Selection events](grid/api/api_overview.md#selection-events)