<P> The W3C Recommendation called XLink describes hyperlinks that offer a far greater degree of functionality than those offered in HTML . These extended links can be multidirectional, linking from, within, and between XML documents . It can also describe simple links, which are unidirectional and therefore offer no more functionality than hyperlinks in HTML . </P> <P> While wikis may use HTML - type hyperlinks, the use of wiki markup, a set of lightweight markup languages specifically for wikis, provides simplified syntax for linking pages within wiki environments--in other words, for creating wikilinks . </P> <P> The syntax and appearance of wikilinks may vary . Ward Cunningham's original wiki software, the WikiWikiWeb used CamelCase for this purpose . CamelCase was also used in the early version of Wikipedia and is still used in some wikis, such as TiddlyWiki, Trac, and PMWiki . A common markup syntax is the use of double square brackets around the term to be wikilinked . For example, the input "((zebras))" will be converted by wiki software using this markup syntax to a link to a zebras article . Hyperlinks used in wikis are commonly classified as follows: </P> <Ul> <Li> Internal wikilinks or intrawiki links lead to pages within the same wiki website . </Li> <Li> Interwiki links are simplified markup hyperlinks that lead to pages of other wikis that are associated with the first . </Li> <Li> External links lead to other webpages (those not covered in the above two cases, wiki or not wiki). </Li> </Ul>

What is the correct html syntax for creating a hyperlink