sfo 0.1.2

• Updated the passengers and landing datasets - up to Dec 2022
• Updated the package documentation and examples

sfo 0.1.1

• Updated the passengers data - up to Dec 2020 (including)

sfo 0.1.0

• Added vignettes
• Added the sankey_ly function for plotting sankey diagram
• Added the sfo_passengers dataset
• Added a NEWS.md file to track changes to the package.