1) First, find the page named term dates by searching for "Term Dates" in the top right search bar of the "pages" page on the dashboard and click search.
2) Once you find the page named "Term Dates" Click into it and then scroll down until you find the object that has the text in. It will look similar to below.
Here you can edit dates and add dates to the table and then add more info on the dates below. Once you are finished click publish or preview if you want to check
that what you have done is correct. Ensure dates are correct when publishing.