Instruction on how to install swirl and swirl courses

swirl.R

# Swirl and swirl lessons installation guide
install.packages("swirl")
library(swirl) # load the swirl package

## To start a swirl lesson, 
## Type in `swirl()`

## These courses contain some useful lessons to do via swirl.
install_course_github("kosukeimai", "qss-swirl")
install_course("R Programming")

## To learn tidyverse, these are good places to start.
## Some may be redundant.
install_course_github("sysilviakim", "swirl-tidy")
install_course("Getting and Cleaning Data")