Create process for display of content diversity charts on the About page

KB has been creating visualizations of the content diversity in the DMTC as it has changed over time for various workshops, reports, etc. using R. Would be very useful / helpful to add these visualizations to the About page.

Start by reviewing the repository's About page content and the existing R visualizations created by KB for DMTC workshops and reports. Determine how the charts should be incorporated and what process is needed; done means the content diversity visualizations are displayed on the About page in a maintainable way.

Written by the indexing model from the issue text.