docs: 添加钉钉联系方式 (#2213)

* docs: 添加钉钉联系方式

* docs: 修改钉钉群组信息

Author: visiky

README.md

@@ -85,6 +85,12 @@ Your contributions are always welcome! Please Do have a look at the [issues](htt
 
 To become a contributor, please follow our [contributing guide](https://github.com/antvis/g2plot/blob/master/CONTRIBUTING.md).
 
+## Contact us
+
+钉钉群组号码: 30233731
+
+<img src="https://gw.alipayobjects.com/zos/antfincdn/9sHnl5k%26u4/dingdingqun.png" width="200" height="266" />
+
 ## Links
 
 <img src="https://gw.alipayobjects.com/zos/antfincdn/1yMwFkBvyV/chartcube-logo-cube.svg" width="18"> [ChartCube](https://chartcube.alipay.com/) - Online chart making tool based on G2Plot.

README.zh-CN.md

@@ -97,6 +97,12 @@ bar.render();
 
 提交代码请遵循 [贡献指引](https://github.com/antvis/g2plot/blob/master/CONTRIBUTING.md)。
 
+## 联系我们
+
+钉钉群组号码: 30233731
+
+<img src="https://gw.alipayobjects.com/zos/antfincdn/9sHnl5k%26u4/dingdingqun.png" width="200" height="266" />
+
 ## 相关链接
 
 <img src="https://gw.alipayobjects.com/zos/antfincdn/1yMwFkBvyV/chartcube-logo-cube.svg" width="18"> [ChartCube](https://chartcube.alipay.com/) - 基于 G2Plot 的在线图表制作工具，交互简单，一键导出图表代码！

docs/manual/contact.en.md

@@ -13,4 +13,8 @@ If you have any questions, suggestions, feedback or willingness to communicate,
 
 - Zhihu：https://zhuanlan.zhihu.com/aiux-antv
 
-- Contribution Guide：https://www.yuque.com/antv/g2plot/apubgw
+- Contribution Guide：https://www.yuque.com/antv/g2plot/apubgw
+
+- DingTalk Group Number: 30233731
+
+<img src="https://gw.alipayobjects.com/zos/antfincdn/9sHnl5k%26u4/dingdingqun.png" width="200" height="266" />

docs/manual/contact.zh.md

@@ -14,3 +14,7 @@ order: 9
 - 知乎专栏：https://zhuanlan.zhihu.com/aiux-antv
 
 - 共建指南：https://www.yuque.com/antv/g2plot/apubgw
+
+- 钉钉群组号码: 30233731
+
+<img src="https://gw.alipayobjects.com/zos/antfincdn/9sHnl5k%26u4/dingdingqun.png" width="200" height="266" />