DOC: Added health check and team management (#3630)

### What problem does this PR solve?



### Type of change


- [x] Documentation Update

docs/guides/manage_team_members.md

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+---
+sidebar_position: 4
+slug: /manage_team_members
+---
+
+# Manage team members
+
+Invite or remove team members, join or leave a team.
+
+By default, each RAGFlow user is assigned a single team named after their name. RAGFlow allows you to invite RAGFlow users to your team. Your team members can help you:
+
+- Upload documents to your datasets.
+- Update document configurations in your datasets.
+- Parse documents in your datasets.
+
+:::tip NOTE
+Team members are currently *not* allowed to invite users to your team, and only you, the team owner, is permitted to do so.
+:::
+
+To enter the **Team** page, click on your avatar on the top right corner of the page **>** Team:
+
+![team](https://github.com/user-attachments/assets/0eac2503-26bc-4568-b3f2-bcd84069a07a)
+
+_On the **Team** page, you can view the information about members of your team and the teams you have joined._
+
+## Invite team members
+
+You are, by default, the owner of your own team and the only person permitted to invite users to join your team or remove team members.
+
+![invite_team_member](https://github.com/user-attachments/assets/75e19d53-3a00-480e-8b16-fe00c23c4486)
+
+## Remove team members
+
+![remove_members](https://github.com/user-attachments/assets/5c1a6ab5-8862-47a0-ad09-77fe88866508)
+
+## Accept or decline team invite
+
+![accept_or_decline_team_invite](https://github.com/user-attachments/assets/6a2cb61f-03d5-4423-9ed1-71df97ff4114)
+