fix a typo

Author: bibarub

installation.md

@@ -9,7 +9,7 @@ nav_order: 2
 
 Pick the installation guide for your system:
 
-- [Window](installation/windows.html)
+- [Windows](installation/windows.html)
 - [MacOS](installation/macos.html)
 - [Ubuntu/Debian](installation/ubuntu.html)
 - [Fedora](installation/fedora.html)