[docs] Update INSTALLATION and CONTRIBUTING (secretflow#568)

# Pull Request

## What problem does this PR solve?

Issue Number: Fixed #

## Possible side effects?

- Performance:

- Backward compatibility:

CONTRIBUTING.md

@@ -60,7 +60,11 @@ docker exec -it spu-dev-$(whoami) bash
 
 ```sh
 Install gcc>=11.2, cmake>=3.26, ninja, nasm>=2.15, python>=3.9, bazelisk, xxd, lld
+```
+
+About the commands used to install the above dependencies, you can follow [Ubuntu docker file](https://github.com/secretflow/devtools/blob/main/dockerfiles/ubuntu-base-ci.DockerFile).
 
+```sh
 python3 -m pip install -r requirements.txt
 python3 -m pip install -r requirements-dev.txt
 ```

INSTALLATION.md

@@ -7,7 +7,7 @@
 SPU has been tested with the following settings:
 
 - Ubuntu 22.04
-- python3.8
+- python3.10
 - 8c16g
 
 ### MacOS