title: How to add a list to a list of list
body: <p>I am trying to combine two lists.  This is what i have</p>
  <pre><code>l1 = [[1,2,3], [3,4,5], [10, 11, 12]]
  l2 = [6,7,8]
  </code></pre>
  <p>This is what I have tried this</p>
  <pre><code>def merge(list1, list2):
      merged_list = [(list1[i], list2[i]) for i in range(0, len(list1))]
      return merged_list
  </code></pre>
  <p>This produces something close</p>
  <pre><code>l3 = merge(l1,l2)
  [([1, 2, 3], 6), ([3, 4, 5], 7), ([10, 11, 12], 8)]
  </code></pre>
  <p>But this is what I want</p>
  <pre><code>l3 = [1,2,3,6], [3,4,5,7], [10,11,12,8]
  </code></pre>
  <p>How do i merge the two lists to get the list of list above?</p>