### What this PR does / why we need it?
update GLM4.7 doc. Fix configuration issues,
including:VLLM_ASCEND_ENABLE_FLASHCOMM1、VLLM_ASCEND_BALANCE_SCHEDULING、VLLM_NIXL_ABORT_REQUEST_TIMEOUT
etc.
### Does this PR introduce _any_ user-facing change?
no
### How was this patch tested?
doc test
---------
Signed-off-by: zjks98 <zhangjiakang4@huawei.com>
Signed-off-by: aipaes <82140963+aipaes@users.noreply.github.com>
Co-authored-by: zjks98 <zhangjiakang4@huawei.com>