title: How to see documentation of inbuilt functions on Jupyter Notebook?
body: <p>I recently researched about finding documentation of any inbuilt <code>python library's</code> function within a <code>cell</code> of <code>Jupyter Notebook</code>. Any suggestion how I can access the documentation?. I know keyboard shortcut which is <code>shift + tab</code>, and with 4 times <code>shift + tab</code>, whole documentation with example pops up. I am just wondering the usual way, apart from shortcut. </p>