Armando Lüscher f39b8d2a86 Proofing (#706)
* Various typo and grammar corrections.

* Use standard single and double quotes.

* Opt for American English, like the rest of the text.

* Read contributing guide before making PR and fix broken links there too ;-)

* Fix broken links and favour HTTPS where possible.
2018-12-30 17:08:36 +01:00
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2018-12-06 18:11:01 +01:00
2018-12-30 17:08:36 +01:00