Update README.md

Author: tomoss

README.md

@@ -1,20 +1,34 @@
 # Singleton pattern examples in C++
 
-A collection of minimal, self-contained C++ examples demonstrating multiple ways to implement the Singleton design pattern.
-The repository includes modern, thread-safe techniques (Meyers Singleton) and legacy aproaches (Raw Pointers, Double-Checked Locking) for comparison.
+A collection of minimal, self-contained C++ examples demonstrating multiple ways to implement the Singleton design pattern. The repository includes modern, thread-safe techniques (Meyers Singleton) and legacy aproaches (Raw Pointers, Double-Checked Locking) for comparison.
 
 ## Prerequisites
 
 Before building, ensure you have the following installed:
 
-### Windows
+### Common Requirements (All Platforms)
 
 * **CMake** (v3.20 or newer required for Presets)
 
-### Linux
+### Windows - Visual Studio MSVC (Preset: windows-msvc)
 
-* **CMake** (v3.20 or newer required for Presets)
-* **GCC or Clang + Ninja
+* **Visual Studio 2022**
+* **Workload Required:** Desktop development with C++
+* **Note:** The preset uses the Visual Studio 17 2022 generator.
+
+### Windows - MinGW (Preset: windows-mingw)
+
+* **MinGW-w64 Toolchain**
+* **Make Tool: mingw32-make** (Included with most MinGW installers).
+* **Configuration:** The bin folder of your MinGW installation (e.g., C:\msys64\mingw64\bin) must be in your system PATH environment variable.
+
+### Linux (Preset: linux-ninja)
+
+* **C++ Compiler:** GCC or Clang (supporting C++17)
+
+* **Generator: Ninja Build System**
+
+Install Command (Ubuntu/Debian):
 ```bash
-sudo apt install build-essential ninja-build
+sudo apt update && sudo apt install build-essential ninja-build cmake
 ```