Update content.

src/docs/asciidoc/wiki/wiki_header.adoc

@@ -19,8 +19,6 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 ifdef++::++env-github,env-browser[:outfilesuffix: .adoc]
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-== Anatomy of a Wiki Header
-
 *pass:[=]* Mandatory. Title of your document.
 
 *pass:[:]author:* Optional. Document author.