macOS Auto Updater

[nilsnilsnils]

I have to download every new version manually. There should be an option to start the auto update process or something like that.

[gadfly3173]

sourcegit/README.md

Lines 101 to 116 in 11a7f32

	For **macOS** users:
	* Thanks [@ybeapps](https://github.com/ybeapps) for making `SourceGit` available on `Homebrew`:
	```shell
	brew install --cask sourcegit
	```
	* If you want to install `SourceGit.app` from GitHub Release manually, you need run following command to make sure it works:
	```shell
	sudo xattr -cr /Applications/SourceGit.app
	```
	> [!NOTE]
	> macOS packages in the `Release` page of this project are all unsigned. If you are worried about potential security issues with the above command, you can download the signed package from the [distribution repository](https://github.com/ybeapps/homebrew-sourcegit/releases) provided by [@ybeapps](https://github.com/ybeapps) (there is no need to execute the above command while installing `SourceGit`).
	* Make sure [git-credential-manager](https://github.com/git-ecosystem/git-credential-manager/releases) is installed on your mac.
	* You can run `echo $PATH > ~/Library/Application\ Support/SourceGit/PATH` to generate a custom PATH env file to introduce `PATH` env to SourceGit.