Wiki documentation: namespaces

I have created a new namespace for this and other artciles documenting the Wiki (the namespace is called wiki_documentation).

A namespace is created by adding it before the new article separated by a :

For example /[/[linear-Elamite:linear-Elamite O]/]/ (/ inserted for technical reasons) creating the namespace "linear-Elamite", and the article "linear-Elamite O" (a linear-Elamite text) stored in the namespace "linear-Elamite".