This PR includes a guide with examples for usage of the new badge.

It's always recommended for open source projects to include a code of conduct or contributors guide that explains how users and contributors can protect themselves from harassment. I have added one for this project using the popular [Con...

Reference:

• https://docs.x.ai/
• https://github.com/langchain-ai/langchainjs/tree/main/libs/langchain-xai/

Logo file source:

• https://commons.wikimedia.org/wiki/File:Grok_logo_without_text.svg

Just a very minor adjustment.

:tada: