GitHub Markdown – Strikethrough Formatting

There are two common ways to render tables inside markdown content:

• By embedding HTML using <table> <tr> <td> tags
• Using special table syntax, which is not an official part of the markdown spec, but is supported in certain libraries including Github Flavoured Markdown (GFM)

Unfortunately the markdown library used by Trello doesn't support either of these options - so no tables in Trello for the time being.

As others have partly mentioned, the imperfect workarounds are:

• Fake tables by using a code block
• Upload/embed an image that displays your table
• Link to a Google Doc/Spreadsheet or some other URL

While you still can't use tags (like <del>), in February 2014, Trello added the ability to cross out text using ~~foo~~.