### What this PR does / why we need it?
This PR updates the GLM4.x documentation by adding multi-node like 2 ×
Atlas 800 A2 (64G × 8) deployment tutorial.
- **What changed**: Added instructions for deploying GLM-4.X models
across multiple nodes, including environment variables and example
commands.
- **Why needed**: Although the previous tutorial stated that multi-node
deployment on Atlas 800 A2 (64GB × 8) is **not recommended**, but we
still face some situation that must deploy GLM-4.7 on 2 × Atlas 800 A2
(64G × 8). And we successfully run GLM-4.7 on 2 nodes and it works fine,
so we think it might be the time to update this part.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
- Verified that the new documentation renders correctly in Markdown
format.
- Tested the multi-node deployment steps on 2 × Atlas 800 A2 (64G × 8)
to ensure the commands work as described.
- Confirmed that existing GLM4.x documentation links and structure
remain intact.
- vLLM version: v0.16.0
- vLLM main:
15d76f74e2
---------
Signed-off-by: ZKSU <zksu@outlook.com>