Merge pull request #1597 from loutongbing/master

距离调大点

Author: pissang

doc/example/tree2.html

@@ -57,7 +57,7 @@
             type:'tree',
             orient: 'horizontal',  // vertical horizontal
             rootLocation: {x: 100,y: 230}, // 根节点位置  {x: 100, y: 'center'}
-            nodePadding: 6,
+            nodePadding: 8,
             layerPadding: 200,
             hoverable: false,
             roam: true,