Use an action from a repository

- [Presenter] So far, we've seen how to add actions … from the marketplace. … Now let's take a look at adding actions … from a GitHub Repository. … Actions can be referenced from the same repo … as the workflow, any public repository … and Docker images published to a repository like Docker Hub. … If you want to use an action … in the same repository as the workflow, … we can specify any path relative to the root of the repo. … So if the target action was inside the .github directory … in a directory named action1, … we would use the path starting with the dot … followed by a slash and so on, … all the way down to the action1 directory. … If we need to call an action from a different repository, … we need to specify the ID of the user … or organization that owns the repo, … the name of the repo itself … and a reference pointing inside the repo. … The reference can be a specific branch … like the master branch, for example, … or it can be a tag or a SHA that hashes … to a specific point in time …