title: Combine two lists into one multidimensional list
body: <p>I would like to merge two lists into one 2d list.</p>
  
  <pre><code>list1=["Peter", "Mark", "John"]
  list2=[1,2,3]
  </code></pre>
  
  <p>into</p>
  
  <pre><code>list3=[["Peter",1],["Mark",2],["John",3]]
  </code></pre>