Elaborate Windows & Mac support

Indicate experimental Windows support. Direct readers to the continuous
integration file for build instructions.

Ask for volunteers for the MacOSX support. Indicate the existing Apple
Framework support.

Fix broken links.

README.md

@@ -7,9 +7,7 @@
 Currently, this work is a *very* early work in progress. Refer to
 https://github.com/MicroscPSF/MicroscPSF-Matlab for the reference implementation.
 
-## Quick start
-
-### Ubuntu/Linux
+## Quick start on Ubuntu/Linux
 
 Install the compiler toolchain and the BLAS/LAPACK library:
 
@@ -53,10 +51,37 @@ ninja all
 sudo ninja install
 ```
 
+## Other operating system support
+
+### Windows
+
+The C++ library only offers experimental support on MSVC/MinGW toolchain. Please
+refer to the build instruction file for details: https://github.com/MicroscPSF/MicroscPSF-Cpp/blob/main/.github/workflows/validate-build.yml
+
+### MacOSX
+
+Mac provides a nice *Accelerate* LAPACK interface in the Apple Framework. The
+build system is capable of [automatically detecting the framework as build
+depdendency](https://mesonbuild.com/Dependencies.html#appleframeworks), so the
+library should be able to compile and run PSF simulation natively.
+
+The project is looking for volunteers and incoming PRs to enable Mac support.
+
+Wishlist:
+
+- [X] Enable Bessel function support from 3rd party library #14 .
+
+- [ ] Modify
+  [meson.build](https://github.com/MicroscPSF/MicroscPSF-Cpp/blob/main/3rdparty/packagefiles/armadillo-code/meson.build#L19)
+  to detect the Accelerate LAPACK interface in Apple Framework.
+
+- [ ] Document the build options, i.e. `meson setup -Duse_boost=true -Darmadillo-code:lapack=framework build-for-macosx`
+
 ## Running the examples
 
 First, follow the *Quick start* instructions to build the example app. Then, given the following microscope configurations in the screenshot...
-![MicroscPSF-Matlab GUI](https://www.ee.cuhk.edu.hk/~tblu/monsite/demos/fastPSF/gui.png)
+
+![MicroscPSF-Matlab GUI](examples/gui.png)
 
 ... program the example C++ file at
 [examples/generate-psf.cpp](https://github.com/MicroscPSF/MicroscPSF-Cpp/blob/main/examples/generate-psf.cpp)
@@ -89,4 +114,4 @@ screenshot above.
 - The original ISO C++ proposal: https://wg21.link/p0226r1
 - GCC compiler support status: https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2017
 - Clang support status: https://libcxx.llvm.org/Status/Cxx17.html
-- Clang support ticket: https://github.com/llvm/llvm-project/issues/99939
+- Clang support ticket: https://github.com/llvm/llvm-project/issues/99939