Good writing is timeless, I may suggest that adding hyperlinks under a new word you introduced inside your essay that requires clicking on and reading a wholly different story to understand the current story you are reading, is a terribly under-performant way of communicating information inside an essay to the reader.
When did using "+" instead of "&" become acceptable in proper English? I understand this is a tech blog and I have no problem with "+" used in a tech context, the use in a virtue signalling piece on the rules of writing a good essay seems misplaced.