Required files (download these from the Gitlab site [here](https://gitlab.erc.monash.edu.au/bads/data-challenges-resources/-/tree/main/Pandas-DataFrames/Time-Series) into the same directory as the notebook on your computer):
Q: Plot only the data (from the full day) for 18th January 2021 for Site 107 as a line plot. What is the busiest period of the day? Are there any issues with this data?