How to use GPLv3 in open source project?

Question

I want to use license GPLv3 in my open source project on GitHub. And I want to ask how can I do that?
I have read an article and I have understood that:

1. My repo has to have a file License, that contains information about GPLv3.
2. At the beginning of each project file should be the following text:

One line to give the program's name and a brief idea of what it does.
Copyright (C) year name of author

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see https://www.gnu.org/licenses/.

And now I want to ask experts: Have I understood correctly how to use GPLv3 in my project?

Answer 1

I know it's not much of an answer, but yes: it seems to me you have done your research carefully and understood the process well. The only change I would make is that the file LICENCE (or License, or similar) should contain the full text of GPLv3, rather than information about it. But other than that, I think you've got it.