Example showing how to update a dataset in ord-data

[bdeadman]

No description provided.

[bdeadman]

New example showing how I updated the Golden dataset (open-reaction-database/ord-data#214) after we were notified that some reactant and product SMILES strings were incorrect. The idea behind this example is to document the process of:

1. loading in a dataset, and some replacement data in .csv
2. looping over the reactions in the dataset and updating the required fields, including adding a new record_modified entry
3. comparing the old and new datasets to review the changes
4. preparing the file for upload to ord-data

[bdeadman]

Additional example showing how to generate dataset by enumerating template files over spreadsheets. Two templates used to accommodate some differences in the tabulated data, and then the datasets are merged together.