Introduce "reading help pages" in Episode 1 Intro to R

[ha0ye]

@katharinemarielee discussed the importance of being able to read technical documentation on twitter, and I realized this can be an important piece of information to facilitate self-learning by attendees after the workshop: https://twitter.com/ResourcefulSqrl/status/1393226321476603908

In Episode 1, the round() function is introduced, and there's a bit that goes over changing the default number of digits, and using ? to find the information.

It would be helpful to add some screenshots and description of navigating the documentation file and pull out important information:

• which package the function is from
• longer-form description
• function arguments and default values
• return value
• examples

LMK if a PR would be welcome.

[Teebusch]

Hi @ha0ye, that's a great suggestion! It's easy to forget how cryptic and overwhelming an R help page can be the first time you see one. Maybe a screenshot with some annotations as you suggest would be a good addition to the lesson?

[tobyhodges]

Thanks both for contributing to this discussion. The lesson underwent a major update and reorganisation when #887 was merged. Although this issue relates to content in a version of the lesson before that update took place, I think the suggestion remains relevant so I will leave it open.