Update 00-before-we-start.Rmd

[sgichuki]

Please delete the text below before submitting your contribution.

This pull request contains edits to the lesson suggested through a comment see link: https://github.com/datacarpentry/R-ecology-lesson/issues/778

Most of the edits to the section "Before we start" are based on the comments in the link above. I added a few of my own that I thought would make the text more readable plus others are to update information on channels where learners can get help for problems they face when using R e.g. the R4DS Slack channel.

Finally these lesson edits are part of my checkout process after recently completing the Carpentries Instructor Training.

Thanks for contributing! If this contribution is for instructor training, please send an email to [email protected] with a link to this contribution so we can record your progress. You’ve completed your contribution step for instructor checkout just by submitting this contribution.

Please keep in mind that lesson maintainers are volunteers and it may be some time before they can respond to your contribution. Although not all contributions can be incorporated into the lesson materials, we appreciate your time and effort to improve the curriculum. If you have any questions about the lesson maintenance process or would like to volunteer your time as a contribution reviewer, please contact Kate Hertweck ([email protected]).

---