The Community Server wiki supports the following wiki syntax/markup. Click here for additional information.
hello world

When
the wiki finds double-bracketed text in the body of a post, it attempts
to find a page with the name “Hello World” within the current wiki. If
it finds a match, it renders the bracketed text as a link. For example, the following syntax
renders as 'This is a TEST', and becomes an active link to the existing page titled This is a TEST.
If the wiki engine does not find a post called 'hello-world', it
creates a link to a new page stub. The link opens the edit page for the
newly created link.
WikiName:hello world

WikiName:hello world works similarly to hello world but requires that the post exist in a wiki called wikiname.
hello world|This is an example

hello world|This is an example works similarly to hello world but renders the link text as This is an example.
WikiName:hello world|This is an example

WikiName:hello world|This is an example works similarly to WikiName hello world but renders the link text as This is an example.
http://www.asp.net

Unbracketed http://www.asp.net creates a link asp.net and adds a trailing image to show that it is an off-site link.
www.asp.net|Microsoft ASP.NET

Single-bracketed www.asp.net|Microsoft ASP.NET works similarly to unbracketed http://www.asp.net except it uses Microsoft ASP.NET as the link text.
imageName.png|This is caption text

Double-bracketed imageName.png|This is caption text works similarly to ImageName.png except it adds the caption text.