[gjs/msvc.partial.fix: 2/2] README.MSVC.md: Mention about VS2019 requirement

[Chun-wei Fan <fanchunwei src gnome org>]

commit aa977e497a4eab8303360185643cd34e701fbc91
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Mon Mar 1 11:32:14 2021 +0800

    README.MSVC.md: Mention about VS2019 requirement
    
    Update README.MSVC.md to mention that in order to build with Visual
    Studio, the 2019 version is now required.
    
    Currently, with the fixes in this MR, GJS master will build on Visual
    Studio 2019 as well as clang-cl, but one must use `/permissive` instead
    of the default `/permissive-` for the time being before #368 is
    resolved.

 README.MSVC.md | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/README.MSVC.md b/README.MSVC.md
index c6fd67d7..4145c571 100644
--- a/README.MSVC.md
+++ b/README.MSVC.md
@@ -1,14 +1,10 @@
 Instructions for building GJS on Visual Studio or clang-cl
 ==========================================================
 Building the GJS on Windows is now supported using Visual Studio
-versions 2017 or later with or without clang-cl in both 32-bit and
+versions 2019 or later with or without clang-cl in both 32-bit and
 64-bit (x64) flavors, via Meson.  It should be noted that a
 recent-enough Windows SDK from Microsoft is still required if using
-clang-cl, as we will still use items from the Windows SDK.  If using
-Visual Studio, Visual Studio 2017 15.9.x or later are known to work;
-earlier versions at after Visual Studio 2017 15.6 may or may not work,
-please let us know how things went if Visual Studio 15.6, 15.7 or 15.8
-is used.
+clang-cl, as we will still use items from the Windows SDK.
 
 Recent official binary installers of CLang (which contains clang-cl)
 from the LLVM website are known to work to build SpiderMonkey 78 and