Improve README.md

[HonkingGoose]

Changes:

• Improve readme:
  • Use one sentence per line pattern, this makes it easier to move text around later
  • Use simple words and phrases
  • Renovate is just called Renovate, and it's a bot, so the correct phrase is: Renovate bot
  • monospace a few matchUpdateType (see Renovate docs) terms, like major, minor and so on
  • Use a GitHub Flavored Markdown alert, instead of the quote syntax
  • Use a numbered lists for the steps to run the tool

Context

Cool project, have a free rewrite. :wink:

[MShekow]

Much appreciated, thanks.