Fix typo of Visual Studio in README

"Visual" was spelled "Visal" without the "u".

Author: Kadmioo

README.md

@@ -12,7 +12,7 @@ The plugin template is meant to be used as a starting point for OBS Studio plugi
 
 | Platform  | Tool   |
 |-----------|--------|
-| Windows   | Visal Studio 17 2022 |
+| Windows   | Visual Studio 17 2022 |
 | macOS     | XCode 16.0 |
 | Windows, macOS  | CMake 3.30.5 |
 | Ubuntu 24.04 | CMake 3.28.3 |