添加demo和文档

harmony_sdk_word_demo/国内游戏鸿蒙客户端sdk对接文档.md

-# 国内游戏鸿蒙客户端sdk对接文档
+# 国内游戏鸿蒙客户端sdk对接文档
@@ -311,6 +311,42 @@ UserSDKManager.getInstance().getUserLoginInfo()
     }
 ```
 
+14、拉起广告
+
+  ````
+
+NetWorkAdManager.getInstance().getAdvertiser(this.getUIContext().getHostContext() as common.UIAbilityContext, '333333',  
+{  
+onAdSubscribeFail: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdPlayFailed: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdPlayReward: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdOpen: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdClick: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdClose: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdPlayBegin: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+},  
+onAdPlayEnd: (info: string): void => {  
+LogUtil.info('zfcs', info);  
+}  
+})
+
+  ````
+
+备注：第一个参数是context(应用的上下文),第二个参数是：广告的场景Id，第三个是数据的状态回调。
+
 QA:
 
    1.华为登录失败：原因：图标大小超过了35KB。