[Doc] Add initial FAQs (#247)

### What this PR does / why we need it?
Add initial FAQs

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
Preview

Signed-off-by: Yikun Jiang <yikunkero@gmail.com>

docs/source/faqs.md

@@ -0,0 +1,21 @@
+# FAQs
+
+## Version Specific FAQs
+
+- [[v0.7.1rc1] FAQ & Feedback](https://github.com/vllm-project/vllm-ascend/issues/19)
+
+## General FAQs
+
+### 1. What devices are currently supported?
+
+Currently, **ONLY Atlas A2 series**  (Ascend-cann-kernels-910b) are supported:
+
+- Atlas A2 Training series (Atlas 800T A2, Atlas 900 A2 PoD, Atlas 200T A2 Box16, Atlas 300T A2)
+- Atlas 800I A2 Inference series (Atlas 800I A2)
+
+Below series are NOT supported yet:
+- Atlas 300I Duo、Atlas 300I Pro (Ascend-cann-kernels-310p) might be supported on 2025.Q2
+- Atlas 200I A2 (Ascend-cann-kernels-310b) unplanned yet
+- Ascend 910, Ascend 910 Pro B (Ascend-cann-kernels-910) unplanned yet
+
+From a technical view, vllm-ascend support would be possible if the torch-npu is supported. Otherwise, we have to implement it by using custom ops. We are also welcome to join us to improve together.

docs/source/index.md

@@ -36,6 +36,7 @@ By using vLLM Ascend plugin, popular open-source models, including Transformer-l
 quick_start
 installation
 tutorials
+faqs
 :::
 
 % What does vLLM Ascend Plugin support?