Add a short request timeout example to endpoint docs

[TDanks2000]

Background

Most endpoint methods accept a RequestConfig as the last argument, and the package documents per-request timeoutMs. A small endpoint-level example would help users apply that pattern without reading multiple docs pages.

Proposed Change

Add one concise example showing a representative endpoint call with { timeoutMs: 5_000 } as the final argument.

Acceptance Criteria

• The example uses an endpoint signature that accepts RequestConfig.
• The example places request config as the final argument.
• The docs link to docs/request-config.md for more detail.
• No API behavior changes are made.

Files Likely Involved

• docs/request-config.md
• docs/endpoints/search.md
• docs/examples.md