example for adjusting server timeout incomplete

[ltalirz]

The docs example for adjusting the server timeout is both incomplete and not quite correct.

• The docs say the default timeout is 5s (also here), but the actual timeout is 10s

fastapi_mcp/fastapi_mcp/server.py

Lines 115 to 119 in e5cad13

	self._http_client = http_client or httpx.AsyncClient(
	transport=httpx.ASGITransport(app=self.fastapi, raise_app_exceptions=False),
	base_url=self._base_url,
	timeout=10.0,
	)

• Following the example results in a broken server (error Request URL is missing an 'http://' or 'https://' protocol.) because the base url is not set. One needs to copy the default http client setup from above for a working adjustment of timeout