README default configuration sync with code

[S1M0N38]

Make use of GitHub snippet rendering of permalink to show default configuration directly from code. This avoid error prone copy and paste.

For example the default configuration in README states that

    openai_edit_params = {
      model = "code-davinci-edit-001",
      temperature = 0,
      top_p = 1,
      n = 1,
    }

however in the default config in the code

    openai_edit_params = {
      model = "gpt-3.5-turbo",
      frequency_penalty = 0,
      presence_penalty = 0,
      temperature = 0,
      top_p = 1,
      n = 1,
    }

Although the default configuration should not be explicitly copied into the README, the permalink should be updated in case of changes (commit hash and lines numbers).

For more information about snippets rendering in Markdown using permalink read this short post.