Update compat table in the README (#193)

* Update compat table in the README

* Update README.md

Author: jtpio

README.md

@@ -15,15 +15,15 @@
 
 ## Requirements
 
-- `python >=3.8`
+- `python >=3.9`
 
 ### Compatibility
 
 #### With Jupyter
 
 | status | `jupyterlite-pyodide-kernel` | `jupyterlite-core` |  `jupyterlab`  |   `notebook`   |  `retrolab`  |
 | :----: | :--------------------------: | :----------------: | :------------: | :------------: | :----------: |
-|  pre   |           `0.6.*`            |    `>=0.6,<0.7`    | `>=4.4.0,<4.5` | `>=7.4.0,<7.5` |      -       |
+| stable |           `0.6.*`            |    `>=0.6,<0.7`    | `>=4.4.3,<4.5` | `>=7.4.3,<7.5` |      -       |
 | stable |           `0.5.*`            |    `>=0.5,<0.6`    | `>=4.3.0,<4.4` | `>=7.3.0,<7.4` |      -       |
 | stable |           `0.4.*`            |    `>=0.4,<0.5`    | `>=4.2.0,<4.3` | `>=7.2.0,<7.3` |      -       |
 | stable |           `0.3.*`            |    `>=0.3,<0.4`    | `>=4.1.1,<4.2` | `>=7.1.0,<7.2` |      -       |