chore: bump version capability matrix

Author: wey-gu

README.md

@@ -370,9 +370,9 @@ See [ScanVertexEdgeExample.py](example/ScanVertexEdgeExample.py) for more detail
 
 | Nebula-Python Version | Compatible NebulaGraph Versions | Notes                                                      |
 | --------------------- | ------------------------------- | ---------------------------------------------------------- |
-| 3.8.1                 | 3.x                             | Highly recommended. Latest release for NebulaGraph 3.x     |
+| 3.8.2                 | 3.x                             | Highly recommended. Latest release for NebulaGraph 3.x series. |
 | master                | master                          | Includes recent changes. Not yet released.                 |
-| 3.0.0 ~ 3.5.0         | 3.x                             | Compatible with any released version within NebulaGraph 3.x|
+| 3.0.0 ~ 3.5.1         | 3.x                             | Compatible with any released version within the NebulaGraph 3.x series. |
 | 2.6.0                 | 2.6.0, 2.6.1                    |                                                            |
 | 2.5.0                 | 2.5.0                           |                                                            |
 | 2.0.0                 | 2.0.0, 2.0.1                    |                                                            |