Have to say this is a remarkably easy operation in GIT. Drop the files in the directory, open the GIT GUI and you’ll see it marked under unstaged changes.

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Double click the file, and it will move to staged changes – that is, it will be committed to the repository when you commit.

Then click Commit.

Note: If the files are not listed, click Rescan.

Note 2: When you commit, you commit to your local repository – you then need to “push” to the remote repository.