Wiki updates

### Overview
We need to update the wiki so that it has the latest info for people onboarding, so that they know what they are developing and we can avoid sharing things in meetings when they should be available in the wiki

### Action Items
- [ ] Add any notes to a comment with question or items missing
- [ ] Answer the questions
- [ ] review the questions to see what needs to be added to wiki
- [ ] Write up changes
- [ ] get approval
- [ ] add to wiki
- [ ] hide comments

### Resources/Instructions
https://github.com/hackforla/knowledgebase/wiki

Start with the knowledgebase wiki at https://github.com/hackforla/knowledgebase/wiki and review the onboarding information currently available. Collect missing questions or notes, answer them, identify the required wiki changes, obtain approval, then publish the approved updates and hide the comments.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.