History of Writing style guide

Updated external style guide links

Note that MDN style prefers the term "parameters" over "arguments."

I added the section on the correct use of “vs.”. This is only based on the title of #Obsolete_vs._deprecated, so can someone please check this or tell me how to do so?

Added an Oxford comma and removed the seemingly unnecessary "a" before "text." My first contribution to MDN :)

Fix up "e.g." and "for example"

Added 'Syntax definitions' section

Clarified the usage of code blocks and <pre>s without class further

Updated screenshot of the 'Syntax Highlighter' menu