New tab removal

[liamkillingback]

I found I also had to remove this section from manifest.json as well as the other two steps provided in the description in order for the newtab window override to stop: "chrome_url_overrides": { "newtab": "src/pages/newtab/index.html" },

[JohnBra]

Hi @liamkillingback, thanks for opening the issue.

I have updated the Readme accordingly.