add install.sh for ubuntu/debian

ubuntu-debian/install.sh

+#!/bin/bash
+# 参考：https://coder.com/docs/code-server/install
+echo -n "输入code-server版本(默认4.90.3): "
+read VERSION
+VERSION=${VERSION:-4.90.3}
+echo 准备安装code-server:${VERSION}
+
+curl -fOL https://x.haod.me/https://github.com/coder/code-server/releases/download/v$VERSION/code-server_${VERSION}_amd64.deb
+dpkg -i code-server_${VERSION}_amd64.deb
+apt update
+apt install -y screen
+screen -dmS code code-server
+echo "等待5s..."
+sleep 5
+screen -ls
+
+echo "服务器配置信息："
+cat ~/.config/code-server/config.yaml