title: Show complete documentation in vscode
body: <p>Jupyter Notebook shows the complete documentation on shift + tab.
  Is there a way I can get the same with vscode?</p>
  <p>Ctrl + shift + space only provides methods signature.</p>
  <p>Edit: I am hoping to see something like this</p>
  <p><a href="https://i.stack.imgur.com/m5YZp.png" rel="noreferrer"><img src="https://i.stack.imgur.com/m5YZp.png" alt="enter image description here" /></a></p>