fixed d8880262 from https://gitee.com/wusongqing/docs/pulls/10565

Update docs against 10304

Signed-off-by: wusongqing<wusongqing@huawei.com>

en/application-dev/reference/apis/js-apis-application-MissionSnapshot.md

@@ -14,19 +14,19 @@ The mission snapshot information can be obtained by using **getMissionSnapShot**
 ```js
 import ElementName from '@ohos.bundle';
 import image from '@ohos.multimedia.image';
-import missionManager from '@ohos.application.missionManager'
+import missionManager from '@ohos.application.missionManager';
 
-  missionManager.getMissionInfos("", 10, (error, missions) => {
-    console.log("getMissionInfos is called, error.code = " + error.code);
-    console.log("size = " + missions.length);
-    console.log("missions = " + JSON.stringify(missions));
-    var id = missions[0].missionId;
+missionManager.getMissionInfos("", 10, (error, missions) => {
+  console.log("getMissionInfos is called, error.code = " + error.code);
+  console.log("size = " + missions.length);
+  console.log("missions = " + JSON.stringify(missions));
+  var id = missions[0].missionId;
 
-    missionManager.getMissionSnapShot("", id, (error, snapshot) => {
-  	console.log("getMissionSnapShot is called, error.code = " + error.code);
-  	console.log("bundleName = " + snapshot.ability.bundleName);
-  })
+  missionManager.getMissionSnapShot("", id, (error, snapshot) => {
+    console.log("getMissionSnapShot is called, error.code = " + error.code);
+    console.log("bundleName = " + snapshot.ability.bundleName);
   })
+})
 ```
 ## MissionSnapshot