This is the most relevant part:
/(...)/rock-paper-scissors.md: 40: MD031/blanks-around-fences Fenced code blocks should be surrounded by blank lines [Context: "```"]
/(...)/rock-paper-scissors.md: 42: MD031/blanks-around-fences Fenced code blocks should be surrounded by blank lines [Context: "```py"]
/(...)/rock-paper-scissors.md: 34: MD032/blanks-around-lists Lists should be surrounded by blank lines [Context: "- two players to play against ..."]
One blank line before and after code blocks (starting and ending with three backticks ```), and before and after list, should deal with lint error.