Add windows requierement

look like MCVC 2019 is not enough for this project.

Author: Stargateur

README.md

@@ -11,6 +11,12 @@ differences, FLIP's comparison can be more meaningful than a simple pixel-wise c
 In order to keep a small dependency closure, this crate does not depend on `image`,
 but interop is simple.
 
+## Requirement
+
+### Windows
+
+- MCVC 2022
+
 ## Example
 
 ```rust