update zh-cn/release-notes/OpenHarmony-v2.2-beta2.md.

Signed-off-by: N NEEN <neen.yang@huawei.com>

update zh-cn/release-notes/OpenHarmony-v2.2-beta2.md.
Signed-off-by: N NEEN <neen.yang@huawei.com>
ec9c0c7b · NEEN · Gitee · c71d9f9b · ec9c0c7b
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zh-cn/release-notes/OpenHarmony-v2.2-beta2.md zh-cn/release-notes/OpenHarmony-v2.2-beta2.md +7 -2

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--- a/zh-cn/release-notes/OpenHarmony-v2.2-beta2.md
+++ b/zh-cn/release-notes/OpenHarmony-v2.2-beta2.md
-# OpenHarmony 2.2 Beta2（2021-07-30）<a name="ZH-CN_TOPIC_0000001182379069"></a>
+# OpenHarmony v2.2 Beta2 <a name="ZH-CN_TOPIC_0000001182379069"></a>

 -   [版本概述](#section1677664815431)
 -   [配套关系](#section13201781528)
@@ -249,9 +249,14 @@ repo forall -c 'git lfs pull'
 </tr>
 </tbody>
 </table>
+
 ### API变更

-API变更待更新发布
+API变更请参考：
+
+[JS API 差异报告](api-change/native-apidiff-v2.2-beta2.md)
+
+[Native API 差异报告](api-change/native-apidiff-v2.2-beta2.md)

 ## 修复缺陷列表<a name="section3442123281619"></a>