Document behaviour for rendering true

See https://reactjs.org/docs/conditional-rendering.html.

When discussing conditional rendering, it's stated that React ignores falses, but it's not clear what happens in the true case. For instance, this.props.shouldSkip || dom.div(null, ...). I'm pretty sure that the actual behaviour is that all booleans are ignored, but it would be nice if it was firmly documented.

從 reactjs.org/docs/conditional-rendering.html 中的條件式渲染文件開始，搭配提供的 this.props.shouldSkip 範例檢視關於 falsy 值的討論。確認 boolean true 如何被渲染或忽略，接著更新文件，明確說明 boolean 值的行為，並讓範例不產生歧義。