docs(okp): add RH_SERVER_OKP and change recommended OKP port to 8081#1623

tisnik merged 1 commit intolightspeed-core:mainlightspeed-core/lightspeed-stack:mainfrom

mwcz:okp-guide-port-and-url-fixmwcz/lightspeed-stack:okp-guide-port-and-url-fixCopy head branch name to clipboard