Feature: automatically add aliases under 'See also'

[nomennescio]

Introducing aliases with ALIAS: will lead to a separate documentation page being generated for the alias. When looking at the word which is aliased, no reference is made to its alias. This could be automatically done whenever ALIAS: is encountered. Consider adding this as a feature to document generation. For instance under the 'See Also' header, or maybe as a separate 'Aliases' section.