Update README.md

Change the order of steps

README.md

@@ -12,10 +12,14 @@ Build wheel steps
 git clone --recursive https://github.com/SHI-Labs/NATTEN
 cd NATTEN
 ```
+
 - Download WindowsWhlBuilder.bat into `NATTEN`
-- Switch python env and make sure the corresponding torch cuda version is installed
 
 - To build with MSVC, please open the "Native Tools Command Prompt for Visual Studio". The exact name may depend on your version of Windows, Visual Studio, and cpu architecture (in my case it was "x64 Native Tools Command Prompt for VS".)
+
+- Switch python env and make sure the corresponding torch cuda version is installed
+
+- Start task
 ```
 # Build with 1/4th of the number of processor threads on your system
 WindowsWhlBuilder.bat build