Add labelled data set

[evidencebp]

Classified samples are importnat for model evaluation and development.
There are many labelled data set already existing and collecting them is a good way to create a aggregated data set.

When adding a data set:

• Add the name of the data set to the resources page
• Get data set owner approval.
• Add the data set reference to the data sets description. Make sure to include citation details in case of academic data sets.
• Add description of the data set construction method
• The description should include the source, sampling technique and labeling protocol (in case that are not those used in this repository).