[TODO] Improve the "repeat" method

[qodesmith]

Look at the custom function I suggested in order to get Typer to repeat typing words from an array. While the .forEach portion seems fine, having to first call .line and then .continue seemed a bit verbose. What if we wanted to repeat certain portions of Typer, then repeat others?

In order to simplify things and have a more intuitive API I'm thinking about introducing a repeatStart method that would be used something like this:

typer('.some-class')
  .cursor({block: true})
  .line()

  // Portion 1 to repeat 3 times
  .repeatStart()
  .continue('Hip-Hop')
  .pause(2000)
  .back('all')
  .continue('Truth')
  .pause(2000)
  .back('all')
  .continue('Free Speech')
  .pause(2000)
  .back('all')
  .repeat(3)

  .line()
  // Portion 2 to repeat 3 times...
  .repeatStart()
  /* ...methods here... */
  .repeat(3)

I'm pretty sure that currently it's possible to use repeat in place of repeatStart in the example above and it would work. But that's confusing. Even if repeatStart was a wrapper around repeat, that would improve the API.