Update CONTRIBUTING.md (#180)

Add documentation step

CONTRIBUTING.md

@@ -47,16 +47,17 @@ For minor changes, such as fixing typos in documentation or updating workflows a
 1. Fork the repository.
 2. Create a new branch from the `main` branch.
 3. Make your changes.
-4. Run the tests and linter. Make sure the tests pass.
-5. Commit your changes.
-6. Push your branch to your fork.
-7. Create a PR.
-8. In the PR, describe your changes and tag the issue e.g. (#123) that it fixes.
-9. Label your PR with one of the following labels:
+4. Update the getting started [notebook](https://github.com/langchain-ai/langchain/blob/master/docs/docs/integrations/vectorstores/weaviate.ipynb) if necessary
+5. Run the tests and linter. Make sure the tests pass.
+6. Commit your changes.
+7. Push your branch to your fork.
+8. Create a PR.
+9. In the PR, describe your changes and tag the issue e.g. (#123) that it fixes.
+10. Label your PR with one of the following labels:
     - `bug`: If the PR fixes a bug.
     - `documentation`: If the PR only changes the documentation.
     - `enhancement`: If the PR adds new functionality.
     - `quality-improvement`: If the PR is about enhancements to code or workflows for better quality, robustness, performance, etc.
 
    Additionally, if the PR is a breaking change, add the `breaking` label.
-10. Address review comments, if any.
+11. Address review comments, if any.