To easily display the usage of a template, especially those using parameters. {{Template|template name}}:displays a template call with no parameters, with the template name linked to the template {{Template|template name|Parameter 1|...|Parameter 8}}:displays a template call with 1 to 8 unnamed parameters {{Template|template name|1=Parameter 1|...|8=Parameter 8}}:displays a template call with 1 to 8 named or unnamed parameters {{Template|template name|1=Parameter 1{{!}}Parameter2{{!}}...}}:displays a template call with an arbitrary number of parameters