Update README.md

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>
Signed-off-by: Dargon789 <64915515+Dargon789@users.noreply.github.com>

Author: Dargon789

README.md

@@ -33,7 +33,7 @@ curl -fsSL https://fnm.vercel.app/install | bash
 ```
 Then, [set up your shell for fnm](#shell-setup)
 
-### Using a script Windows (Git Bash):
+### Using a script on Windows (Git Bash):
 
 ```sh
 curl -fsSL https://fnm.vercel.app/install | bash