update: korean translate, add link, img, how to build(pynput)

README-KR.md

@@ -5,19 +5,23 @@
   <a href="#how-to-build-with-docker">Docker</a> •
   <a href="#file-structure">Structure</a> •
   <a href="#snapshot">Snapshot</a><br>
-  [<a href="README-ZH.md">中文</a>] | [<a href="README-ES.md">Español</a>] | [<a href="README-FA.md">فارسی</a>] | [<a href="README-FR.md">Français</a>] | [<a href="README-DE.md">Deutsch</a>] | [<a href="README-PL.md">Polski</a>] | [<a href="README-FI.md">Suomi</a>] | [<a href="README-ML.md">മലയാളം</a>] | [<a href="README-JP.md">日本語</a>] | [<a href="README-NL.md">Nederlands</a>] | [<a href="README-IT.md">Italiano</a>] | [<a href="README-RU.md">Русский</a>] | [<a href="README-PTBR.md">Português (Brasil)</a>] | [<a href="README-EO.md">Esperanto</a>] | [<a href="README-KR.md">한국어</a>]<br>
+  [<a href="README-ZH.md">中文</a>] | [<a href="README-ES.md">Español</a>] | [<a href="README-FA.md">فارسی</a>] | [<a href="README-FR.md">Français</a>] | [<a href="README-DE.md">Deutsch</a>] | [<a href="README-PL.md">Polski</a>] | [<a href="README-ID.md">Indonesian</a>] | [<a href="README-FI.md">Suomi</a>] | [<a href="README-ML.md">മലയാളം</a>] | [<a href="README-JP.md">日本語</a>] | [<a href="README-NL.md">Nederlands</a>] | [<a href="README-IT.md">Italiano</a>] | [<a href="README-RU.md">Русский</a>] | [<a href="README-PTBR.md">Português (Brasil)</a>] | [<a href="README-EO.md">Esperanto</a>] | [<a href="README-KR.md">한국어</a>]<br>
   <b>README를 모국어로 번역하기 위한 당신의 도움의 필요합니다.</b>
 </p>
 
-Chat with us: [Discord](https://discord.gg/nDceKgxnkV) | [Reddit](https://www.reddit.com/r/rustdesk)
+Chat with us: [Discord](https://discord.gg/nDceKgxnkV) | [Twitter](https://twitter.com/rustdesk) | [Reddit](https://www.reddit.com/r/rustdesk)
 
 
 [![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/I2I04VU09)
 
 Rust로 작성되었고, 설정없이 바로 사용할 수 있는 원격 데스트탑 소프트웨어입니다. 자신의 데이터를 완전히 컨트롤할 수 있고, 보안의 염려도 없습니다. 우리의 rendezvous/relay 서버를 사용해도, [스스로 설정](https://rustdesk.com/server)하는 것도, [스스로 rendezvous/relay 서버를 작성할 수도 있습니다](https://github.com/rustdesk/rustdesk-server-demo).
 
+![image](https://user-images.githubusercontent.com/71636191/171661982-430285f0-2e12-4b1d-9957-4a58e375304d.png)
+
 RustDesk는 모든 기여를 환영합니다. 기여하고자 한다면 [`CONTRIBUTING.md`](CONTRIBUTING.md)를 참조해주세요.
 
+[**RustDesk는 어떻게 작동하는가?**](https://github.com/rustdesk/rustdesk/wiki/How-does-RustDesk-work%3F)
+
 [**BINARY DOWNLOAD**](https://github.com/rustdesk/rustdesk/releases)
 
 ## 무료 퍼블릭 서버
@@ -72,6 +76,12 @@ sudo yum -y install gcc-c++ git curl wget nasm yasm gcc gtk3-devel clang libxcb-
 sudo pacman -Syu --needed unzip git cmake gcc curl wget yasm nasm zip make pkg-config clang gtk3 xdotool libxcb libxfixes alsa-lib pulseaudio
 ```
 
+### Install pynput package
+
+```sh
+pip3 install pynput
+```
+
 ### Install vcpkg
 
 ```sh
@@ -154,6 +164,8 @@ target/release/rustdesk
 - **[src/client.rs](https://github.com/rustdesk/rustdesk/tree/master/src/client.rs)**: 피어 접속 시작
 - **[src/rendezvous_mediator.rs](https://github.com/rustdesk/rustdesk/tree/master/src/rendezvous_mediator.rs)**: [rustdesk-server](https://github.com/rustdesk/rustdesk-server)와 통신해서 리모트 다이렉트(TCP hole punching) 혹은 relayed 접속
 - **[src/platform](https://github.com/rustdesk/rustdesk/tree/master/src/platform)**: 플랫폼 고유의 코드
+- **[flutter](https://github.com/rustdesk/rustdesk/tree/master/flutter)**: Flutter code for mobile
+- **[flutter/web/js](https://github.com/rustdesk/rustdesk/tree/master/flutter/web/js)**: Javascript for Flutter web client
 
 ## Snapshot
 
@@ -164,3 +176,4 @@ target/release/rustdesk
 ![image](https://user-images.githubusercontent.com/71636191/113112857-3fbd5d80-923c-11eb-9836-768325faf906.png)
 
 ![image](https://user-images.githubusercontent.com/71636191/135385039-38fdbd72-379a-422d-b97f-33df71fb1cec.png)
+