add sig and tpc address

OpenHarmony-Overview.md

@@ -317,6 +317,10 @@ For details, see  [https://gitee.com/openharmony/docs/blob/master/en/device-dev/
 
 OpenHarmony Organization Address：https://gitee.com/openharmony
 
+OpenHarmony SIG Address: https://gitee.com/openharmony-sig
+
+OpenHarmony Third Party Components Address: https://gitee.com/openharmony-tpc
+
 OpenHarmony Retired Organization Address：https://gitee.com/openharmony-retired
 
 ## OpenHarmony Documentation<a name="section21031470109"></a>

OpenHarmony-Overview_zh.md

@@ -303,6 +303,10 @@ OpenHarmony支持如下几种设备类型：
 
 OpenHarmony主库组织地址：https://gitee.com/openharmony
 
+OpenHarmonySIG组织地址：https://gitee.com/openharmony-sig
+
+OpenHarmony三方库组织地址：https://gitee.com/openharmony-tpc
+
 OpenHarmony归档组织地址：https://gitee.com/openharmony-retired
 
 ## 开发者文档<a name="section21031470109"></a>