doc: link setRawMode() from signal docs

Fixes: #32065

PR-URL: #32088
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

Author: addaleax

doc/api/process.md

@@ -470,7 +470,7 @@ process.on('SIGTERM', handle);
 * `'SIGTERM'` is not supported on Windows, it can be listened on.
 * `'SIGINT'` from the terminal is supported on all platforms, and can usually be
   generated with `<Ctrl>+C` (though this may be configurable). It is not
-  generated when terminal raw mode is enabled.
+  generated when [terminal raw mode][] is enabled and `<Ctrl>+C` is used.
 * `'SIGBREAK'` is delivered on Windows when `<Ctrl>+<Break>` is pressed, on
   non-Windows platforms it can be listened on, but there is no way to send or
   generate it.
@@ -2506,6 +2506,7 @@ cases:
 [process_emit_warning]: #process_process_emitwarning_warning_type_code_ctor
 [process_warning]: #process_event_warning
 [report documentation]: report.html
+[terminal raw mode]: tty.html#tty_readstream_setrawmode_mode
 [uv_rusage_t]: http://docs.libuv.org/en/v1.x/misc.html#c.uv_rusage_t
 [wikipedia_minor_fault]: https://en.wikipedia.org/wiki/Page_fault#Minor
 [wikipedia_major_fault]: https://en.wikipedia.org/wiki/Page_fault#Major