title: Add comment inline with new item, or before
body: <p>I'm using ruamel.yaml to insert some values into yaml files that i alredy have.
  I am able to insert new items into the yaml file, but i can not insert comments.</p>
  
  <p>This is what i'm trying to achieve</p>
  
  <pre><code>Resources:
    Statement:
      - Sid: Sid2
        Resource:
        # 1 - Account 1
        - item1
        - item # New Comment
  
  </code></pre>
  
  <p>This is the python code i'm using, but i'm not able to insert the item2 and the comments.</p>
  
  <pre class="lang-py prettyprint-override"><code>import sys
  from ruamel.yaml import YAML
  
  yaml_doc = """\
  Resources:
    Statement:
      - Sid: Sid2
        Resource:
        # 1 - Account 1
        - item1
  """
  
  yaml = YAML()
  data = yaml.load(yaml_doc)
  data['Resources']['Statement'][0]['Resource'].append("item2")
  data['Resources']['Statement'][0]['Resource'].yaml_add_eol_comment('New Comment', 'item2', column=0)
  yaml.dump(data, sys.stdout)
  </code></pre>
  
  <p>Can I get some help on how to add the comment in line with the newly added item?</p>
  
  <p>Thanks</p>