Update README.md

Author: zaikunzhang

README.md

@@ -7,14 +7,18 @@
 ## What
 
 This package provides scripts that attempt to facilitate setting up the
-[MATLAB MEX](https://www.mathworks.com/help/matlab/ref/mex.html), focusing on macOS or Windows.
+[MATLAB MEX](https://www.mathworks.com/help/matlab/ref/mex.html), focusing on macOS or Windows. 
 
-Not that MATLAB requires you to install a [supported (C or Fortran) compiler along with Xcode (on macOS) 
+Note that MATLAB requires you to install a [supported (C or Fortran) compiler along with Xcode (on macOS) 
 or Microsoft Visual Studio (on Windows)](https://www.mathworks.com/support/requirements/previous-releases.html). 
 This package is **not** a hacking tool to circumvent these requirements,
 but a tool to help MATLAB recognize your compiler after these requirements are satisfied.
 
-For Fortran, this package provides scripts (`install_oneapi_macos.sh` and `install_oneapi_windows.bat`) to help
+As of April 2024, we do not supprt Fortran setup on macOS with silicon chips, because MathWorks
+reauires the NAG Fortran compiler for such a set up, which is
+not available for free. 
+
+For Fortran, this package provides scripts (`install_oneapi_macos.sh` for macOS with Intel chips and `install_oneapi_windows.bat` for Windows) to help
 you install the Fortran compiler from 
 [Intel oneAPI](https://www.intel.com/content/www/us/en/developer/tools/oneapi/overview.html), 
 available free of charge. This is the compiler officially supported by MATLAB.