The RHODS dashboard has a resources tab that displays a collection of tutorial/documentation/etc. widgets. Each of these widgets has a short description of its content. Unfortunately, these descriptions are very inconsistent grammatically. Many end in periods, many do not. Clean up these so that they all end in periods.

See attached screenshot for an example of what this looks like.

For an example of a similar change, see this PR.

Instructions for how to test changes to the ODH dashboard can be found here.