update docs

Signed-off-by: Nshawn_he <shawn.he@huawei.com>

en/application-dev/reference/apis/js-apis-battery-info.md

 # Battery Info<a name="EN-US_TOPIC_0000001121409574"></a>
 
->![](../../public_sys-resources/icon-note.gif) **NOTE:** 
+>![](../../public_sys-resources/icon-note.gif) **NOTE** 
 >The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 The Battery Info module provides APIs for querying the charger type, battery health status, and battery charging status.
@@ -8,7 +8,7 @@ The Battery Info module provides APIs for querying the charger type, battery hea
 
 ## Modules to Import<a name="section199443271307"></a>
 
-```
+```js
 import batteryInfo from '@ohos.batteryInfo';
 ```
 
@@ -126,7 +126,7 @@ Describes battery information.
 
 -   Example
 
-    ```
+    ```js
     import batteryInfo from '@ohos.batteryInfo';
     var batterySoc = batteryInfo.batterySOC;
     ```

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

@@ -8,7 +8,7 @@ The Brightness module provides an API for setting the screen brightness.
 
 ## Modules to Import
 
-```
+```js
 import brightness from '@ohos.brightness';
 ```
 
@@ -30,6 +30,6 @@ This is a system API and cannot be called by third-party applications.
 
 **Example**
 
-```
+```js
 brightness.setValue(128);
 ```

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

@@ -6,7 +6,7 @@
 
 ## Modules to Import
 
-```
+```js
 import hichecker from '@ohos.hichecker';
 ```
 
@@ -42,7 +42,7 @@ Adds one or more rules. HiChecker detects unexpected operations or gives feedbac
 
 **Example**
 
-```
+```js
 // Add a rule.
 hichecker.addRule(hichecker.RULE_CAUTION_PRINT_LOG);
 
@@ -67,7 +67,7 @@ Removes one or more rules. The removed rules will become ineffective.
 
 **Example**
 
-```
+```js
 // Remove a rule.
 hichecker.removeRule(hichecker.RULE_CAUTION_PRINT_LOG);
 
@@ -92,7 +92,7 @@ Obtains a collection of thread, process, and alarm rules that have been added.
 
 **Example**
 
-```
+```js
 // Add a rule.
 hichecker.addRule(hichecker.RULE_THREAD_CHECK_SLOW_PROCESS);
 
@@ -122,7 +122,7 @@ Checks whether the specified rule exists in the collection of added rules. If th
 
 **Example**
 
-```
+```js
 // Add a rule.
 hichecker.addRule(hichecker.RULE_THREAD_CHECK_SLOW_PROCESS);
 

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

@@ -8,7 +8,7 @@ The Power Manager module provides APIs for rebooting and shutting down the syste
 
 ## Modules to Import
 
-```
+```js
 import power from '@ohos.power';
 ```
 
@@ -35,7 +35,7 @@ This is a system API and cannot be called by third-party applications.
 
 **Example**
 
-```
+```js
 power.shutdownDevice("shutdown_test");
 console.info('power_shutdown_device_test success')
 ```
@@ -57,7 +57,7 @@ Reboots the system.
 
 **Example**
 
-```
+```js
 power.rebootDevice("reboot_test");
 console.info('power_reboot_device_test success')
 ```
@@ -77,7 +77,7 @@ Checks the screen status of the current device.
 
 **Example**
 
-```
+```js
 power.isScreenOn((error, screenOn) => {
     if (typeof error === "undefined") {
         console.info('screenOn status is ' + screenOn);
@@ -101,7 +101,7 @@ Checks the screen status of the current device.
 
 **Example**
 
-```
+```js
 power.isScreenOn()
 .then(screenOn => {
     console.info('screenOn status is ' + screenOn);

en/application-dev/reference/apis/js-apis-screen-lock.md

 # Screen Lock Management
 
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note：**
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
 > The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
 ## Modules to Import
 
 
-```
+```js
 import screenlock from '@ohos.screenLock';
 ```
 
@@ -28,7 +28,7 @@ Checks whether the screen is locked. This method uses an asynchronous callback t
 
 - Example
   
-  ```
+  ```js
   screenlock.isScreenLocked((err, data)=>{      
      if (err) {
           console.error('isScreenLocked callback error -> ${JSON.stringify(err)}');
@@ -54,7 +54,7 @@ Checks whether the screen is locked. This method uses a promise to return the re
 
 - Example
   
-  ```
+  ```js
   screenlock.isScreenLocked().then((data) => {
       console.log('isScreenLocked success: data -> ${JSON.stringify(data)}');
   }).catch((err) => {
@@ -81,7 +81,7 @@ Checks whether a device is in secure mode. This method uses an asynchronous call
 
 - Example
   
-  ```
+  ```js
   screenlock.isSecureMode((err, data)=>{      
      if (err) {
           console.error('isSecureMode callback error -> ${JSON.stringify(err)}');
@@ -107,7 +107,7 @@ Checks whether a device is in secure mode. This method uses a promise to return
 
 - Example
   
-  ```
+  ```js
   screenlock.isSecureMode().then((data) => {
       console.log('isSecureMode success: data->${JSON.stringify(data)}');
   }).catch((err) => {
@@ -134,7 +134,7 @@ Unlocks the screen. This method uses an asynchronous callback to return the resu
 
 - Example
   
-  ```
+  ```js
   screenlock.unlockScreen((err)=>{      
      if (err) {
           console.error('unlockScreen callback error -> ${JSON.stringify(err)}');
@@ -160,7 +160,7 @@ Unlocks the screen. This method uses a promise to return the result.
 
 - Example
   
-  ```
+  ```js
   screenlock.unlockScreen().then(() => {
       console.log('unlockScreen success');
   }).catch((err) => {

en/application-dev/reference/apis/js-apis-system-battery.md

 # Battery Level
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note：**
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
 > - The APIs of this module are no longer maintained since API version 7. It is recommended that you use [`@ohos.batteryInfo`](js-apis-battery-info.md) instead.
 > 
 > - The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
@@ -9,7 +9,7 @@
 ## Modules to Import
 
 
-```
+```js
 import battery from '@system.battery';
 ```
 
@@ -39,7 +39,7 @@ The following value will be returned when the check result is obtained.
 
 **Example**
 
-```
+```js
 export default {    
   getStatus() {       
     battery.getStatus({           

en/application-dev/reference/apis/js-apis-system-brightness.md

 # Screen Brightness
 
-> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note：**
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
 > - The APIs of this module are no longer maintained since API version 7. It is recommended that you use [`@ohos.brightness`](js-apis-brightness.md) instead.
 > 
 > - The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
@@ -9,7 +9,7 @@
 ## Modules to Import
 
 
-```
+```js
 import brightness from '@system.brightness';
 ```
 
@@ -38,7 +38,7 @@ The following values will be returned when the operation is successful.
 
 **Example**
 
-```
+```js
 export default {    
   getValue() {        
     brightness.getValue({            
@@ -73,7 +73,7 @@ Sets the screen brightness.
 
 **Example**
 
-```
+```js
 export default {    
   setValue() {        
     brightness.setValue({            
@@ -114,7 +114,7 @@ The following values will be returned when the operation is successful.
 
 **Example**
 
-```
+```js
 export default {    
   getMode() {        
     brightness.getMode({            
@@ -149,7 +149,7 @@ Sets the screen brightness adjustment mode.
 
 **Example**
 
-```
+```js
 export default {    
   setMode() {        
     brightness.setMode({            
@@ -185,7 +185,7 @@ Sets whether to always keep the screen on. Call this API in **onShow()**.
 
 **Example**
 
-```
+```js
 export default {    
   setKeepScreenOn() {        
     brightness.setKeepScreenOn({            

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

@@ -8,7 +8,7 @@ This module provides thermal level-related callback and query APIs to obtain the
 
 ## Modules to Import
 
-```
+```js
 import thermal from '@ohos.thermal';
 ```
 
@@ -46,7 +46,7 @@ Subscribes to thermal level changes.
 
 **Example**
 
-```
+```js
 var lev = 0;
 thermal.subscribeThermalLevel((lev) => {
     console.info("Thermal level is: " + lev);
@@ -69,7 +69,7 @@ Unsubscribes from thermal level changes.
 
 **Example**
 
-```
+```js
 thermal.unsubscribeThermalLevel(() => {
     console.info("Unsubscribe completed.");
 });
@@ -91,7 +91,7 @@ Obtains the current thermal level.
 
 **Example**
 
-```
+```js
 var lev = thermal.getThermalLevel();
 console.info("Thermal level is: " + lev);
 ```