fix(docs): remove extra asterisk from heading in AGENTS.md and CLAUDE.md (#34856)

(Replace this entire block of text)

Read the full contributing guidelines:
https://docs.langchain.com/oss/python/contributing/overview

Thank you for contributing to LangChain! Follow these steps to have your
pull request considered as ready for review.

1. PR title: Should follow the format: TYPE(SCOPE): DESCRIPTION

  - Examples:
    - fix(anthropic): resolve flag parsing error
    - feat(core): add multi-tenant support
    - test(openai): update API usage tests
- Allowed TYPE and SCOPE values:
https://github.com/langchain-ai/langchain/blob/master/.github/workflows/pr_lint.yml#L15-L33

2. PR description:

  - Write 1-2 sentences summarizing the change.
- If this PR addresses a specific issue, please include "Fixes
#ISSUE_NUMBER" in the description to automatically close the issue when
the PR is merged.
  - If there are any breaking changes, please clearly describe them.
- If this PR depends on another PR being merged first, please include
"Depends on #PR_NUMBER" in the description.

3. Run `make format`, `make lint` and `make test` from the root of the
package(s) you've modified.

  - We will not consider a PR unless these three are passing in CI.

Additional guidelines:

- We ask that if you use generative AI for your contribution, you
include a disclaimer.
- PRs should not touch more than one package unless absolutely
necessary.
- Do not update the `uv.lock` files or add dependencies to
`pyproject.toml` files (even optional ones) unless you have explicit
permission to do so by a maintainer.

AGENTS.md

@@ -32,7 +32,7 @@ langchain/
 - **Integration layer** (`partners/`): Third-party service integrations. Note that this monorepo is not exhaustive of all LangChain integrations; some are maintained in separate repos, such as `langchain-ai/langchain-google` and `langchain-ai/langchain-aws`. Usually these repos are cloned at the same level as this monorepo, so if needed, you can refer to their code directly by navigating to `../langchain-google/` from this monorepo.
 - **Testing layer** (`standard-tests/`): Standardized integration tests for partner integrations
 
-### Development tools & commands**
+### Development tools & commands
 
 - `uv` – Fast Python package installer and resolver (replaces pip/poetry)
 - `make` – Task runner for common development commands. Feel free to look at the `Makefile` for available commands and usage patterns.

CLAUDE.md

@@ -32,7 +32,7 @@ langchain/
 - **Integration layer** (`partners/`): Third-party service integrations. Note that this monorepo is not exhaustive of all LangChain integrations; some are maintained in separate repos, such as `langchain-ai/langchain-google` and `langchain-ai/langchain-aws`. Usually these repos are cloned at the same level as this monorepo, so if needed, you can refer to their code directly by navigating to `../langchain-google/` from this monorepo.
 - **Testing layer** (`standard-tests/`): Standardized integration tests for partner integrations
 
-### Development tools & commands**
+### Development tools & commands
 
 - `uv` – Fast Python package installer and resolver (replaces pip/poetry)
 - `make` – Task runner for common development commands. Feel free to look at the `Makefile` for available commands and usage patterns.