[typescript/rna-transcription] Update mentoring.md

[RomaLetodiani]

added another way of types

[IsaacG]

Is this meant to add a talking point? If so, it doesn't really explain the talking point very much.

Is this supposed to show another way the exercise can be solved? Mentor notes aren't meant to showcase different approaches. Maybe add an approaches article if you would like to do that.

[RomaLetodiani]

moved code to talking points and explained the talking point

[RomaLetodiani]

@SleeplessByte can you check it out, thank you in advance.

[SleeplessByte]

thanks a lot for the feedback

You're welcome. Would you like to do something with it? The note still says it's equivalent when I've shown it's not.

[RomaLetodiani]

updated