Hooks docs: Props usage isn't obvious

Seen this a few times as a bit of a common theme in Reactiflux's #need-help channel. New Hooks users (with only minimal prior React experience) are hitting the Hooks docs, and having some success using basic hooks (e.g., useState), but are missing how "hook components" consume props.

I think there's a bit of an issue of "hook components" not necessarily being recognized as "function components", or users not being familiar with function components to start with.

Looking at the first two pages of hooks docs, we get to the fourth example component before any props are used. I'm (unfortunately) guessing that users aren't reading solidly to that point to see the example.

Proposed solution

Could the intro page's example include using props? Or perhaps a second intro page example which does. I think it needs to be pretty early in the new user's reading flow, before they attempt to write their own component, and before they jump to reading the later pages.

Long term solution

At the moment, I think a large contributing factor is that the Hooks documentation is still mostly standalone from the rest of the docs. I think the combination of newness wearing off, and integration into the "main" docs will eventually solve this problem.

檢視 Hooks 文件的前兩頁，尤其是介紹範例，以及 props 首次出現的第四個範例元件。更新一個早期的介紹範例，或新增第二個範例，使其示範一個使用 props 的 hook 元件，並讓新讀者清楚了解其用法。