chore(docs): mention install from git repo (#1203)

Author: stainless-bot

CONTRIBUTING.md

@@ -59,7 +59,7 @@ If you’d like to use the repository from source, you can either install from g
 To install via git:
 
 ```bash
-pip install git+ssh://[email protected]:openai/openai-python.git
+pip install git+ssh://[email protected]/openai/openai-python.git
 ```
 
 Alternatively, you can build from source and install the wheel file:

README.md

@@ -18,6 +18,7 @@ The REST API documentation can be found [on platform.openai.com](https://platfor
 > The SDK was rewritten in v1, which was released November 6th 2023. See the [v1 migration guide](https://github.com/openai/openai-python/discussions/742), which includes scripts to automatically update your code.
 
 ```sh
+# install from PyPI
 pip install openai
 ```