doc: option --prof documentation help added

PR-URL: #34991
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>

src/node_options.cc

@@ -383,6 +383,9 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
             "preserve symbolic links when resolving the main module",
             &EnvironmentOptions::preserve_symlinks_main,
             kAllowedInEnvironment);
+  AddOption("--prof",
+            "Generate V8 profiler output.",
+            V8Option{});
   AddOption("--prof-process",
             "process V8 profiler output generated using --prof",
             &EnvironmentOptions::prof_process);