Update docs (22205)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/device-dev/porting/porting-smallchip-kernel-linux.md

@@ -19,6 +19,7 @@ You can use the Bootloader provided by the chipset vendor or open-source U-Boot
 ## Adaptation, Building, Burning, and Startup
 
 1. Prepare the kernel configuration files, especially the chipset-related configuration files.
+
    Source code directory of the configuration files: **kernel/linux/config/**
 
    Create a **<*YOUR_CHIP*>_small_defconfig** file, such as **hi3516dv300_small_defconfig**, in the **linux-4.19/arch/arm/configs/** directory. The configuration file can be created by combining the general-purpose **small_common_defconfig** file and chipset-specific configurations.
@@ -69,12 +70,19 @@ Based on the preceding process, the recommended verification procedure is as fol
    Create a root file system image **rootfs.img** by following instructions in [Building Procedures](../subsystems/subsys-build-all.md). As shown in the preceding figure, the startup process is closely related to the product configuration. You need to complete the following configuration when creating **rootfs.img**:
 
    - Component configuration
+      
       In the product component configuration file ***vendor*/{*company*}/{*product*}/config.json**, configure the **init** component of the startup subsystem and the **linux_4_1_9** component of the kernel subsystem.
+      
    - System service configuration
+      
       Modify the system service configuration file ***vendor*/{*company*}/{*product*}/init_configs/init_xxx.cfg** to start the shell service.
+      
    - File system configuration
+      
       In the file system configuration file ***vendor*/{*company*}/{*product*}/fs.yml**, create the **/bin/sh -> mksh** and **/lib/ld-musl-arm.so.1 -> libc.so** soft links. These two files are the shell executable program and the c library on which the executable program depends, respectively.
+      
    - Startup configuration
+      
       In the ***vendor*/{*company*}/{*product*}/init_configs/etc** directory, configure startup settings, including the **fstab**, **rsS**, and **S*xxx*** files. Configure the startup settings as needed.
    
    After the build is complete, check the **rootfs** content in the product compilation output directory to determine whether the generated **rootfs.img** file meets the expectation.

en/device-dev/quick-start/quickstart-pkg-install-tool.md

@@ -14,51 +14,37 @@ Perform the following steps on Ubuntu.
 
 1. Run the following command to install hb and update it to the latest version:
    
-   ```
-   pip3 install --user build/lite
+   ```shell
+   python3 -m pip install --user build/hb
    ```
 
 2. Set an environment variable.
      
-   ```
+   ```shell
    vim ~/.bashrc
    ```
 
      Copy the following command to the last line of the .bashrc file, save the file, and exit.
      
-   ```
+   ```shell
    export PATH=~/.local/bin:$PATH
    ```
 
      Update the environment variable.
      
-   ```
+   ```shell
    source ~/.bashrc
    ```
 
 3. Run the **hb -h** command in the source code directory. If the following information is displayed, the installation is successful:
      
-   ```
-   usage: hb
-   
-   OHOS build system
-   
-   positional arguments:
-     {build,set,env,clean}
-       build               Build source code
-       set                 OHOS build settings
-       env                 Show OHOS build env
-       clean               Clean output
-   
-   optional arguments:
-     -h, --help            show this help message and exit
-   ```
+   ![hb_help](figures/hb_help.png)
 
 > ![icon-notice.gif](public_sys-resources/icon-notice.gif) **NOTICE**
 > - To uninstall hb, run the following command:
 >     
->   ```
->   pip3 uninstall ohos-build
+>   ```shell
+>   python3 -m pip uninstall ohos-build   
 >   ```
 > 
 > - If any issue occurs during the hb installation, see [FAQs](quickstart-pkg-common-hberr.md).
@@ -78,25 +64,25 @@ Perform the following steps on Ubuntu.
 
 3. Decompress the LLVM installation package to **~/llvm**.
      
-   ```
+   ```shell
    tar -zxvf llvm.tar -C ~/
    ```
 
 4. Set an environment variable.
      
-   ```
+   ```shell
    vim ~/.bashrc
    ```
 
    Copy the following command to the last line of the .bashrc file, save the file, and exit.
 
      
-   ```
+   ```shell
    export PATH=~/llvm/bin:$PATH
    ```
 
 5. Validate the environment variable.
      
-   ```
+   ```shell
    source ~/.bashrc
    ```