README.md: Update Homebrew installation command

Fixes #273

Author: xor-gate

README.md

@@ -30,7 +30,7 @@ Currently, macOS 11 or higher is necessary to run the latest version. For older
 
 To install [just download the dmg](https://github.com/syncthing/syncthing-macos/releases/latest), mount it and drag and drop the application to install. The only necessary configuration is to set the API key and URL when provisioning a remote syncthing instance, the local instance is auto-configured. The `syncthing-macos` application bundle disables the auto-updater of `syncthing` as it has its own update mechanism using [Sparkle](https://sparkle-project.org/).
 
-The latest version is available at [GitHub Releases](https://github.com/syncthing/syncthing-macos/releases/latest), or it can also be installed using [homebrew](https://github.com/Homebrew/homebrew-cask) [`brew install --cask syncthing`](https://formulae.brew.sh/cask/syncthing)
+The latest version is available at [GitHub Releases](https://github.com/syncthing/syncthing-macos/releases/latest), or it can also be installed using [homebrew](https://github.com/Homebrew/homebrew-cask) [`brew install --cask syncthing-app`](https://formulae.brew.sh/cask/syncthing-app)
 
 # Why