doc: http2.createServer `options` as optional
The method might be designed to explicitly take options. However,
the implementation and many examples already allow the first parameter
of function type. (This is maybe because of Compatibility API.)
// an example in doc/api/http2.md
const http2 = require('node:http2');
const server = http2.createServer();
server.on('stream', (stream, headers) => { ... });I'm not sure whether applying the same to http2.createSecureServer is
meaningful. But, seeing https.createServer, the options parameter is
handled as optional.