Ok so here is a short How to to begin expanding this right away:
no need (yet) to even log in with.
to create a new article one uses the Search function, chose a name that seems appropriate (ie Methylation Cycle). If no article with such name exists, one can then click on Create this page. now is time to copy-paste / edit valuable information.
as simple as that!
(edit) so to make internal links we click on the third button while editing or we surround the word by double brackets (ie [[copper]])