update vscode command line linux code example

Example 1: updating vscode on ubuntu

wget https://vscode-update.azurewebsites.net/latest/linux-deb-x64/stable -O /tmp/code_latest_amd64.deb
sudo dpkg -i /tmp/code_latest_amd64.deb

Example 2: how to open ubuntu file in visual studio

$ code
$ code my-file