Move note for import dataset

[Gammerdinger]

In the Reading in dataset lesson:

https://hbctraining.github.io/Intro-to-R-mkdocs/day_1_exercise/D1.3e_reading_in_and_data_inspection/#create-a-data-frame-by-reading-in-the-file

There is a note:

"If you are going to use this method, it could impact the reproducibility of your work, because the steps to do that import are not recorded anywhere. If you are going to use this method of importing data, it is STRONGLY RECOMMENDED that you copy the command that read the dataset in and is present in the console to an Rscript file. In the future, you can run that line of code from the Rscript file to recreate the data object."

That needs to be located within the dropdown above it.