update docs

Signed-off-by: limengxuan <mengxuan.li@dynamia.ai>

Author: archlitchi

README.md

@@ -122,6 +122,12 @@ HAMi-core is a user-layer resource isolator provided by HAMi community, works on
 
 Dynamic-mig is a hardware resource isolator, works on Ampere arch or later GPU. 
 
+The table below shows the summary:
+| Mode        | Isolation        | MIG GPU Required | Annotation | Core/Memory Control | Recommended For            |
+| ----------- | ---------------- | ---------------- | ---------- | ------------------- | -------------------------- |
+| HAMI-core   | Software (VCUDA) | No               | No         | Yes                 | General workloads          |
+| Dynamic MIG | Hardware         | Yes              | Yes        | MIG-controlled      | Performance-sensitive jobs |
+
 You can set the sharing mode and customize your installation by adjusting the [configs](doc/config.md)