Migrate the CI pipeline from Travis CI to GitHub Actions.

• README.md

  • Replace the Travis CI build status badge with a GitHub Actions build status badge.

• .github/workflows/ci.yml

  • Create a new GitHub Actions workflow fi...

Migrate the CI pipeline from Travis CI to GitHub Actions.

• README.md

  • Replace the Travis CI build status badge with a GitHub Actions badge.
  • Update the badge URL to point to the new GitHub Actions workflow.

• .travis.yml...

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: