When you are ready to share your Git remote repository with others, add them as collaborators and send them a link to your repository.
In a browser, sign in to your GitHub or GitHub Enterprise account.
Select your project, click Settings, then click Collaborators.
In the text field, enter the contact information for the individual you want to add, then click Add collaborator.
In a browser, sign in to your GitHub account.
Select your project, then click Clone or download.
In the dialog that appears, click Open in Xcode.
In the pop-up menu, choose Share followed by a method, such as Email.
The message will contain an Xcode link that when clicked clones the project and opens it in Xcode.
For GitHub Enterprise, copy the URL and email it to the contributor.