[Doc] Release note for v0.11.0rc0 (#3224)

### What this PR does / why we need it?
Add release note for v0.11.0rc0

### Does this PR introduce _any_ user-facing change?

### How was this patch tested?


- vLLM version: v0.11.0rc3
- vLLM main:
https://github.com/vllm-project/vllm/commit/releases/v0.11.0

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

README.md

@@ -52,7 +52,7 @@ Please use the following recommended versions to get started quickly:
 
 | Version    | Release type | Doc                                  |
 |------------|--------------|--------------------------------------|
-|v0.10.2rc1|Latest release candidate|[QuickStart](https://vllm-ascend.readthedocs.io/en/latest/quick_start.html) and [Installation](https://vllm-ascend.readthedocs.io/en/latest/installation.html) for more details|
+|v0.11.0rc0|Latest release candidate|[QuickStart](https://vllm-ascend.readthedocs.io/en/latest/quick_start.html) and [Installation](https://vllm-ascend.readthedocs.io/en/latest/installation.html) for more details|
 |v0.9.1|Latest stable version|[QuickStart](https://vllm-ascend.readthedocs.io/en/v0.9.1-dev/quick_start.html) and [Installation](https://vllm-ascend.readthedocs.io/en/v0.9.1-dev/installation.html) for more details|
 
 ## Contributing
@@ -73,7 +73,7 @@ Below is maintained branches:
 
 | Branch     | Status       | Note                                 |
 |------------|--------------|--------------------------------------|
-| main       | Maintained   | CI commitment for vLLM main branch and vLLM v0.10.2 tag   |
+| main       | Maintained   | CI commitment for vLLM main branch and vLLM v0.11.0 tag   |
 | v0.7.1-dev | Unmaintained | Only doc fixed is allowed |
 | v0.7.3-dev | Maintained   | CI commitment for vLLM 0.7.3 version, only bug fix is allowed and no new release tag any more. |
 | v0.9.1-dev | Maintained   | CI commitment for vLLM 0.9.1 version |