Title Change, Adding other Pages

[indangasy]

I trust you are well and you gonna assist me on this minor issue(s)

1. How can i edit the logo size? i have managed to replace it. Which file should i edit, the path?
2. Would like to edit the footer. Possible? Add something where it says Powered by mediacms.io
3. I have edited the file to change the website title, still shows MediaCMS. Same with about us! Which files do i need to edit to effect the changes?
4. How do Add other pages / links on the left menu

[anjanesh]

I would like to know how to edit the About page as well.