minor update for how_to_build_and_install.md

Signed-off-by: Takeshi Miura <[email protected]>

doc/howto/how_to_build_and_install.md

@@ -6,9 +6,9 @@
 * [4. Build in VSCode](#build-in-visual-studio-code)
 
 ## Install CMake
-The installation procedures in Ubuntu 18.04/16.04/14.04 LTS and Windows 7/10 are shown here as examples. For Ubuntu 18.04/16.04/14.04 32-bit LTS and Mac, you can get it in [YDLidar-SDK wiki](https://github.com/YDLIDAR/YDLidar-SDK/wiki).
+The installation procedures in Ubuntu 22.04/18.04/16.04/14.04 LTS and Windows 7/10 are shown here as examples. For Ubuntu 22.04/18.04/16.04/14.04 32-bit LTS and Mac, you can get it in [YDLidar-SDK wiki](https://github.com/YDLIDAR/YDLidar-SDK/wiki).
 YDLidar SDK requires [CMake 2.8.2+](https://cmake.org/) as dependencies. 
-### Ubuntu 18.04/16.04/14.04 LTS
+### Ubuntu 22.04/18.04/16.04/14.04 LTS
 You can install these packages using apt:
 ```shell
 sudo apt install cmake pkg-config
@@ -35,10 +35,11 @@ if you want to use python API, you need to install python and swig:
 [swig office install](http://www.swig.org/download.html)
 
 ## Build YDLidar-SDK
-### Ubuntu 18.04/16.04/14.04 LTS
+### Ubuntu 22.04/18.04/16.04/14.04 LTS
 In the YDLidar SDK directory, run the following commands to compile the project:
 ```
 git clone https://github.com/YDLIDAR/YDLidar-SDK.git
+mkdir -p YDLidar-SDK/build
 cd YDLidar-SDK/build
 cmake ..
 make
@@ -95,8 +96,8 @@ Three samples are provided in samples, which demonstrate how to configure YDLida
 
 ![](images/sequence.png)
 
-### Ubuntu 18.04/16.04 /14.04 LTS
-For Ubuntun 18.04/16.04/14.04 LTS, run the *tri_test* if connect with the Triangle LiDAR unit(s) or TOF LiDAR unit(s):
+### Ubuntu 22.04/18.04/16.04 /14.04 LTS
+For Ubuntu 22.04/18.04/16.04 /14.04 LTS, run the *tri_test* if connect with the Triangle LiDAR unit(s) or TOF LiDAR unit(s):
 ```
 ./tri_test
 ```