From b76ebbb52231b83a7d3d9611404851cadc75e95e Mon Sep 17 00:00:00 2001
From: dntzhang <dntzhang@qq.com>
Date: Mon, 19 Nov 2018 09:33:03 +0800
Subject: [PATCH] update readme

---
 packages/omi-canvas/README.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/omi-canvas/README.md b/packages/omi-canvas/README.md
index db0fe03ee..082aab6da 100644
--- a/packages/omi-canvas/README.md
+++ b/packages/omi-canvas/README.md
@@ -74,11 +74,11 @@ The effect shown below:
 
 ## Tag Supported
 
-|**Name**|
-| ----|
-|text|
-|bitmap|
-|group|
+|**Name**|**Describe**|
+| ----|---------|
+|text| Used to display text|
+|bitmap|Used to display image|
+|group|Used to group elements. Group can nested group.|
 
 ## Property