[#7710] update docs for v2.2.2
[#7710] update docs for v2.2.2

emeroad/pinpoint,jaehong-kim/pinpoint,emeroad/pinpoint,naver/pinpoint,jaehong-kim/pinpoint,naver/pinpoint,emeroad/pinpoint,jaehong-kim/pinpoint,koo-taejin/pinpoint,naver/pinpoint,minwoo-jung/pinpoint,minwoo-jung/pinpoint,jaehong-kim/pinpoint,jaehong-kim/pinpoint,emeroad/pinpoint,koo-taejin/pinpoint,minwoo-jung/pinpoint,koo-taejin/pinpoint,koo-taejin/pinpoint,naver/pinpoint,koo-taejin/pinpoint,koo-taejin/pinpoint,minwoo-jung/pinpoint,naver/pinpoint,minwoo-jung/pinpoint,jaehong-kim/pinpoint,minwoo-jung/pinpoint,emeroad/pinpoint,emeroad/pinpoint