Fix example error code & format of Ability

Signed-off-by: Nxuzhihao <xuzhihao16@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-featureAbility.md

@@ -85,7 +85,7 @@ featureAbility.startAbility(
             uri: ""
         },
     }
-   ).then((data) => {
+).then((data) => {
 	console.info("==========================>startAbility=======================>");
 });
 ```
@@ -153,6 +153,9 @@ featureAbility.startAbilityForResult(
             uri:""
         },
     },
+    (err, data) => {
+        console.info("err: " + JSON.stringfy(err) + "data: " + JSON.stringfy(data))
+    }
 )
 ```
 
@@ -476,7 +479,8 @@ terminateSelf(): Promise\<void>
 
 ```javascript
 import featureAbility from '@ohos.ability.featureability';
-featureAbility.terminateSelf().then((data) => {		    console.info("==========================>terminateSelfCallBack=======================>");
+featureAbility.terminateSelf().then((data) => {
+    console.info("==========================>terminateSelfCallBack=======================>");
 });
 ```
 
@@ -642,7 +646,7 @@ var connId = featureAbility.connectAbility(
     },
 );
 
-featureAbility.disconnectAbility(connId).then((error,data)=>{
+featureAbility.disconnectAbility(connId).then((error,data) => {
     console.log('featureAbilityTest result errCode : ' + error.code + " data: " + data);
 });
 ```