Add auxiliary verb

"How engines work?" is grammatically incorrect
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Aron Eidelman 2018-07-12 09:13:02 -07:00 committed by GitHub
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@ -30,7 +30,7 @@ Different engines have different "codenames", for example:
The terms above are good to remember, because they are used in developer articles on the internet. We'll use them too. For instance, if "a feature X is supported by V8", then it probably works in Chrome and Opera. The terms above are good to remember, because they are used in developer articles on the internet. We'll use them too. For instance, if "a feature X is supported by V8", then it probably works in Chrome and Opera.
```smart header="How engines work?" ```smart header="How do engines work?"
Engines are complicated. But the basics are easy. Engines are complicated. But the basics are easy.