After making changes to your repository, you can push these changes to other repositories.
In the sidebar select the repository from which you want to push the changes (the source repository).
Click the Push icon in the top bar of the Document Window, or select the menu item Repository > Push to...
In the dialog that appears, select a compatible repository from the drop down menu under Destination.
If needed, choose any advanced options which are appropriate when pushing (for example, the --force option if the push will create remote heads).