• Allowed HTML tags: <a> <p> <br> <em> <strong> <cite> <table> <tr> <td> <th> <tbody> <ul> <ol> <li> <dl> <dt> <dd><img> <div> <h2> <h3> <h4> <b> <span> <hr> <u> <b>
• Link to content with [[some text]], where "some text" is the title of existing content or the title of a new piece of content to create. You can also link text to a different title by using [[link to this title|show this text]]. Link to outside URLs with [[http://www.example.com|some text]], or even [[http://www.example.com]].
• You can use Markdown syntax to format and style the text.
• Lines and paragraphs break automatically.
• Web page addresses and e-mail addresses turn into links automatically.

More information about formatting options