doc: missing cli options

In the last CLI doc, these options are missing:

--experimental-worker
--loader

But they are present in the source whitelist for NODE_OPTIONS:

node/src/node.cc

Lines 3162 to 3168 in 2237a8e

"--experimental-worker",
"--force-fips",
"--icu-data-dir",
"--inspect",
"--inspect-brk",
"--inspect-port",
"--loader",

cc @addaleax @nodejs/modules, as I am not sure how to document them.