DOC: Add a pointer to the SciPy fortran doc

Author: HaoZeke

doc/source/f2py/windows/index.rst

@@ -6,8 +6,11 @@ F2PY and Windows
 
 .. warning::
 
-	F2PY support for Windows is not at par with Linux support, and 
-	OS specific flags can be seen via ``python -m numpy.f2py``
+	F2PY support for Windows is not always at par with Linux support
+
+.. note::
+   `ScPy's documentation`_ has some information on system-level dependencies
+   which are well tested for Fortran as well.
 
 Broadly speaking, there are two issues working with F2PY on Windows:
 
@@ -19,6 +22,7 @@ extending Fortran modules for Python natively, via F2PY on Windows.
 
 Overview
 ========
+
 From a user perspective, the most UNIX compatible Windows
 development environment is through emulation, either via the Windows Subsystem
 on Linux, or facilitated by Docker. In a similar vein, traditional
@@ -206,3 +210,4 @@ path using a hash. This needs to be added to the ``PATH`` variable.
 .. _are outdated: https://github.com/conda-forge/conda-forge.github.io/issues/1044
 .. _now deprecated: https://github.com/numpy/numpy/pull/20875
 .. _LLVM Flang: https://releases.llvm.org/11.0.0/tools/flang/docs/ReleaseNotes.html
+.. _ScPy's documentation: http://scipy.github.io/devdocs/building/index.html#system-level-dependencies