### What changes were proposed in this pull request?
Add navigation for `REST API` document.
### Why are the changes needed?
`REST API` document does not have any navigation, which is better to add navigation to guide REST API.
<img width="1438" alt="image" src="https://github.com/user-attachments/assets/b5b3a14a-38d4-4769-bffb-3acd571d5dbb">
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
No.
Closes#2775 from SteNicholas/navigate-rest-api.
Authored-by: SteNicholas <programgeek@163.com>
Signed-off-by: mingji <fengmingxiao.fmx@alibaba-inc.com>
