fix some formatting issues and consistency; - Change capitalization (Query Parameters -> Query parameters, Json -> JSON) - Make Query/JSON parameters and Status codes headings bold - Fix indentation of some code blocks - Fix headings (H2 -> H1), although all headings should be shifted the other way round ;-) Signed-off-by: Sebastiaan van Stijn <github@gone.nl> Upstream-commit: a4438ca606223f7c8ae5edb4101ff5eaae39fb05 Component: engine