Debugging demo

2020-07-24 code review meeting

Repo contains two debugging examples:

• demo1.R gives a toy demonstration of traceback(), debug(), and browser() using functions defined in functions.R
• demo2.R is a real-world example of debugging code in someone else's package

To recreate the issue in demo 2, you'll need specific package versions. Run the following in this repo to get the right versions:

renv::restore()