[Doc][Misc] Fix Docker image tags and add A3/A2 tab-set for Qwen3 tutorials (vllm-project#11239)

### What this PR does / why we need it?

Fixes Docker image tags in Qwen3-30B-A3B and Qwen3-Coder-30B-A3B
tutorials:
- Wraps Docker Pull and Docker Run commands in tab-set (A3/A2) for
clarity
- Adds `-a3` suffix to A3 image tags (e.g., `vllm-ascend:v0.22.1rc-a3`)
- Removes YaRN from Coder Long Context table (Coder natively supports
256K context)

Follow-up to vllm-project#10148.

- vLLM version: v0.23.0
- vLLM main:
vllm-project/vllm@dc68bd8

Signed-off-by: xuchi <xuchicolson@163.com>

Author: xuchi-0808

docs/source/tutorials/models/Qwen3-30B-A3B.md

@@ -46,24 +46,26 @@ Qwen3-30B-A3B-W8A8 adopts a hybrid quantization strategy (ordered by model struc
 
 You can use the official all-in-one Docker image for Qwen3 MoE models.
 
-**Docker Pull:**
-
-```bash
-docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|
-```
-
-**Docker Run:**
-
 :::::{tab-set}
 :sync-group: hardware
 
 ::::{tab-item} Atlas 800I A3
 :sync: a3
 
+**Docker Pull:**
+
 ```{code-block} bash
    :substitutions:
 
-export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|
+docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|-a3
+```
+
+**Docker Run:**
+
+```{code-block} bash
+   :substitutions:
+
+export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|-a3
 
 docker run \
     --name vllm-ascend-env \
@@ -113,6 +115,16 @@ If you are on a shared machine, map only the chips you need (e.g., `/dev/davinci
 ::::{tab-item} Atlas 800I A2
 :sync: a2
 
+**Docker Pull:**
+
+```{code-block} bash
+   :substitutions:
+
+docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|
+```
+
+**Docker Run:**
+
 ```{code-block} bash
    :substitutions:
 

docs/source/tutorials/models/Qwen3-Coder-30B-A3B.md

@@ -46,24 +46,26 @@ Qwen3-Coder-30B-A3B-W8A8 adopts a hybrid quantization strategy (ordered by model
 
 You can use the official all-in-one Docker image for Qwen3 MoE models.
 
-**Docker Pull:**
-
-```bash
-docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|
-```
-
-**Docker Run:**
-
 :::::{tab-set}
 :sync-group: hardware
 
 ::::{tab-item} Atlas 800I A3
 :sync: a3
 
+**Docker Pull:**
+
 ```{code-block} bash
    :substitutions:
 
-export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|
+docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|-a3
+```
+
+**Docker Run:**
+
+```{code-block} bash
+   :substitutions:
+
+export IMAGE=quay.io/ascend/vllm-ascend:|vllm_ascend_version|-a3
 
 docker run \
     --name vllm-ascend-env \
@@ -113,6 +115,16 @@ If you are on a shared machine, map only the chips you need (e.g., `/dev/davinci
 ::::{tab-item} Atlas 800I A2
 :sync: a2
 
+**Docker Pull:**
+
+```{code-block} bash
+   :substitutions:
+
+docker pull quay.io/ascend/vllm-ascend:|vllm_ascend_version|
+```
+
+**Docker Run:**
+
 ```{code-block} bash
    :substitutions:
 
@@ -470,7 +482,7 @@ vllm bench serve \
 | --------------- | ------ | --- | ------------- | ------------ | --------- | --- | ------------ |
 | High Throughput | 1 (A3) | 1   | 37364         | 100          | Off       | Off | -            |
 | Low Latency     | 2 (A3) | 4   | 37364         | 100          | Off       | On  | -            |
-| Long Context    | 2 (A3) | 4   | 131072        | 14           | Off       | On  | YaRN         |
+| Long Context    | 2 (A3) | 4   | 131072        | 14           | Off       | On  | -            |
 
 > For detailed parameter descriptions, please refer to the deployment examples in Section 5.