Fix inconsistent font styling in About and Join the Team pages

[AnilKumar3494]

As a user, I would expect to see consistent font styling in the About and Join the team pages.

Current Behavior
Currently, there are parts of these pages that have text styling that is inconsistent with the other parts.

The "Our Story" section in About and the "Acknowledgements" section in Join the team should be updated to be consistent with the styling in the other sections.

See the attached screenshot for an example of the inconsistency