title: Using markdown icons within tables in Github?
body: <p>I would like checkmarks to appear in table cells in my github README.md file. The problem is, instead of <code>:white_check_mark:</code> taking the form of a white checkmark, it instead leaves that raw literal text within the table. </p>
  
  <p>Here is the full markdown of the table</p>
  
  <pre><code>| Property | Type | Null | Description |
  | -------- | ---- | ---- | ----------- |
  | subject | string | &amp;nbsp; | Message subject |
  | body_excerpt | string | &amp;nbsp; | Short excerpt of the message body |
  | to | list | :white_check_mark: | Names and emails of the message recipients |
  | cc | list | :white_check_mark: | Names and emails of the message recipients who were CC'd |
  </code></pre>
  
  <p>Any ideas why this icon might not be appearing?</p>
  
  <p>Thanks</p>
  
  <p>EDIT: above example actually does show the white check marks. For better reference, check out README.md in <a href="https://github.com/johnpc/markdown_test" rel="nofollow">this repo</a></p>