message: doc: improve the formatting of keyboard keys
  Use the `<kbd>` HTML tag
  [skip ci]
diff: @@ -61,7 +61,7 @@ Otherwise, you'll need to wait until Mid-June for an official preview build to d
  Firstly, make sure you're building & deploying `CascadiaPackage` in Visual Studio, _NOT_ `Host.EXE`. `OpenConsole.exe` is just `conhost.exe`, the same old console you know and love. `opencon.cmd` will launch `openconsole.exe`, and unfortunately, `openterm.cmd` is currently broken.
  -Secondly, try pressing Ctrl+t. The tabs are hidden when you only have one tab by default. In the future, the UI will be dramatically different, but for now, the defaults are _supposed_ to look like the console defaults.
  +Secondly, try pressing <kbd>Ctrl</kbd> + <kbd>T</kbd>. The tabs are hidden when you only have one tab by default. In the future, the UI will be dramatically different, but for now, the defaults are _supposed_ to look like the console defaults.
  ## I tried running WindowsTerminal.exe and it crashes!
  