doc: add parameters for Http2Session:stream event
Add parameters for the callback for the Http2Session:stream event inline with the pattern in the rest of the documentation.
Refs: https://github.com/nodejs/help/issues/877#issuecomment-381253464
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
documentation is changed or added -
commit message follows commit guidelines
P.S. I was kinda confused regarding the type of the flags
variable, so I set it to Number
for now.
/cc @nodejs/http2 @mcollina @vsemozhetbyt