[llvm] [docs][CMake] Add CMakePreset, improve VS documentation (PR #84760)

[via llvm-commits]

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@@ -119,7 +120,43 @@ These instruction were tested with Visual Studio 2019 and Python 3.9.6:
  Select the last link: ``Source code (zip)`` and unpack the downloaded file using
  Windows Explorer built-in zip support or any other unzip tool.
 
-12. Finally, configure LLVM using CMake:
+12. Open the LLVM folder in Visual Studio or configure LLVM with CMake.
+
+    Recently Visual Studio has added native support for CMake which will run and
+    manage the CMake settings for you instead of you manually having to generate
+    a Visual Studio Soluion. This is the recommended way to build and debug LLVM
+    in Visual Studio 2022.
+
+    If you want to generate a Visual Studio Solution for older versions of Visual
+    Studio or becasue that is a workflow that suites you better please refer to the
+    chapter below on :ref:`generating Visual Studio Solution<gen_vs_cmake>`.
+
+    To use the native CMake support, launch `Visual Studio 2022` and select the
+    option `Open a Local Folder` and open the root `llvm-project` folder. This
+    will automatically launch CMake (have some patience, it can be a bit slow)
+    and populate the interface.
+
+    LLVM ships with a default `CMakePresets.json` that is supposed to make it easy
+    to get started, but usually you need to modify the setings used, the best way
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sylvain-audi wrote:

typo "setings" -> "settings"

https://github.com/llvm/llvm-project/pull/84760