Heading style [Expected: atx; Actual: setext]

Headings should be surrounded by blank lines [Expected: 1; Actual: 0; Below] [Context: "Adding our `Player` `Component` to our `App` takes two steps:"]

Trailing punctuation in heading [Punctuation: ':']

Trailing spaces [Expected: 0 or 2; Actual: 1]

Lists should be surrounded by blank lines [Context: "- Write an `add_player` functi..."]

Multiple consecutive blank lines [Expected: 2; Actual: 3]

Bare URL used [Context: "https://github.com/richelbilde..."]

Trailing spaces [Expected: 0 or 2; Actual: 1]

Trailing spaces [Expected: 0 or 2; Actual: 1]