• Web page addresses and e-mail addresses turn into links automatically.
• Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <img> <embed> <object> <description> <p> <br> <b> <h1> <h1> <h2> <h3> <h4> <h5> <h6> <table> <td> <tr> <tt> <u> <ol> <ul> <tbody> <i> <u> <b> <big> <blockquote> <br> <caption> <center> <cite>
• 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]].

More information about formatting options