docs: updata BoAT_User_Guide_en.md
add Installation steps of make, gcc, python, libcurl under cygwin
@@ -137,6 +137,17 @@ make
sudo make install
sudo apt-get install libcurl4-openssl-dev
````
+- Cygwin
+
+Execute setup-x86_64.exe and install tools including make, gcc, python, libcurl as shown below:
+![image](https://user-images.githubusercontent.com/81662688/130744353-3e6ad68c-7945-44e6-93ac-c8a468e8e0aa.png)
+![image](https://user-images.githubusercontent.com/81662688/130744453-08a1dff2-08d8-46d8-9732-de814b077ba7.png)
+![image](https://user-images.githubusercontent.com/81662688/130744464-409165ad-a743-401c-8ed2-68060cd4d9e1.png)
+![image](https://user-images.githubusercontent.com/81662688/130744485-e3d5a4ed-bd9a-4a44-b9fa-81066fe2165b.png)
+![image](https://user-images.githubusercontent.com/81662688/130744499-06029343-9f65-4f33-a094-01de4c8ae25e.png)
+![image](https://user-images.githubusercontent.com/81662688/130744525-e4614f6a-6f33-4dae-9d6c-2d0b5bb994ec.png)
+![image](https://user-images.githubusercontent.com/81662688/130744541-7645fe99-9c21-44e0-a3cc-fe84b102d0cf.png)
+![image](https://user-images.githubusercontent.com/81662688/130744556-163fb5e4-0260-42d8-b8c1-4c78052bd7d1.png)
Under Windows, the SDK does not support compilation in environments other than Cygwin. If you must run outside of Cygwin (for example, a cross-compiler using Windows as the Build environment), please refer to [Use Windows as Compiler Environment](#Use-Windows-As-CompilerE-nvironment) chapter to adjust the compiled files.
