Correct Oxford Comma in Join Us Page

[nadiaspn0503]

Prerequisite

1. Be a member of Hack for LA. (There are no fees to join.) If you have not joined yet, please follow the steps on our Getting Started page.
2. Please make sure you have read our Hack for LA Contributing Guide before you claim/start working on an issue.

Overview

Our website needs to use the Oxford comma consistently so that the website is correct and uniform. In this issue we will be changing text on the Join Us page.

Action Items

• For the file /pages/join-us.html, we will be changing text on line 62

            something, growing their experiences, portfolios and ability to work on
  

  becomes

            something, growing their experiences, portfolios, and ability to work on
  

• Use Docker to test changes locally, in both desktop and mobile views

Resources

Website page with issue: https://www.hackforla.org/join
File on GitHub: https://github.com/hackforla/website/blob/gh-pages/pages/join-us.html