A mixed bag of minor fixes, mostly related to language use (I mean English, not C++) (#1776)

* Minor comment fix

* Minor language fix

* Minor language fix

* Minor clarification

* Minor language fix

* Minor language fix

* Remove whitespace for clarity

* Make whitespace consistent (again, it wasn't the "bad" here, right?)

* Minor language fix

* Change weird formatting for emphasis

* Fix (what I believe is) a slightly distracting typo

* Minor language fix

* Suggest to highlight even security vulnerabilities as a possible outcome of concurrency errors

* Minor language fix

* Suggest to add new section for a seemingly unrelated note

* Minor language fix

* Minor language fix (not sure what this intended to say in the first place?)

* Minor language fix

* Add minor remark

* Minor language improvement

* Minor language fix

* Point out a bad example

* Minor fixes

* Minor language fix

* Add missing period (the lack of which doesn't look bad here, but does a bit in the rendered html)

* Minor language fix

* Minor language fix

* Minor typo fix (but is this what was meant?)

* Minor language improvement (?)

* Minor language fix

* Minor language fix (?)

* Add missing closing quotation mark

* Minor language fix

* Minor language fix

* Remove extra dot (or was it supposed to be three dots instead?)

* Minor language fix

* Minor language fix

* Minor language fix

* Minor language fix

* Minor language improvement

* Minor formatting improvements

* Minor improvements

* Minor language fix

* More fixing

* Add missing parentheses (did I get it right?)

* Minor language fix (?)

* Minor language fix

* Minor language fix

* Fix language (but is this what was meant in the first place?)

* Update heading to match content (in particular, the example)

* Remove superfluous whitespace

* Update also the "bad" example to use int*