Update README on public repo

### Overview
This README serves as a comprehensive guide for individuals exploring our public repository. It outlines our team's core objectives, presents the schedule of our meetings, and offers additional relevant information. It's important to note that this document will be the primary source of information until our profile is established on the Hack for LA website.

### Action Items
- [ ] Identify what information that perspective team members would need to know before they get access to our private repo
- [ ] Write a draft of the new README in a comment on this issue
- [ ] Get sign-off by the other pms
- [ ] Update the README

### Resources/Instructions
- [Tables README on Github](https://github.com/hackforla/tables-public/blob/main/README.md)