Update README to reflect GitHub Actions Windows CI support

Co-authored-by: simogasp <[email protected]>

Author: Copilot

README.md

@@ -102,11 +102,11 @@ We acknowledge that there is at least one SIFT implementation that is vastly fas
 
 ## Continuous integration:
 
-* ![Continuous Integration](https://github.com/alicevision/popsift/workflows/Continuous%20Integration/badge.svg?branch=master) master branch on Linux.
+* ![Continuous Integration](https://github.com/alicevision/popsift/workflows/Continuous%20Integration/badge.svg?branch=master) master branch (Linux and Windows).
 
-* ![Continuous Integration](https://github.com/alicevision/popsift/workflows/Continuous%20Integration/badge.svg?branch=develop) develop branch on Linux.
+* ![Continuous Integration](https://github.com/alicevision/popsift/workflows/Continuous%20Integration/badge.svg?branch=develop) develop branch (Linux and Windows).
 
-* [![Build status](https://ci.appveyor.com/api/projects/status/rsm5269hs288c2ji/branch/develop?svg=true)](https://ci.appveyor.com/project/AliceVision/popsift/branch/develop) develop branch on Windows.
+* [![Build status](https://ci.appveyor.com/api/projects/status/rsm5269hs288c2ji/branch/develop?svg=true)](https://ci.appveyor.com/project/AliceVision/popsift/branch/develop) develop branch on Windows (AppVeyor - legacy).
 
 ## License