Create a Templates directory in your vault and pop the above files in there. Then:
- Open the Daily Notes setting in Obsidian's settings and point the template to
Templates/Daily. - If you have the Book plugin installed, click the gear and set the template to
Templates/Book.
I like to create a yearly directory for every year, but that's up to you. I also go into the settings and have the images I pull in automatically set into Assets.
Good job