Lei Chen

sync https://github.com/mobxjs/mobx/pull/3237

需同步 https://github.com/mobxjs/mobx/pull/3188 上游官方文档变更

需同步 https://github.com/mobxjs/mobx/pull/3158 上游官方文档变更

需同步 https://github.com/mobxjs/mobx/pull/3018 上游官方文档变更

需同步 https://github.com/mobxjs/mobx/pull/3001 对应的文档更改

Pin: sync with upstream/mobx #2875 change

1

需同步 https://github.com/mobxjs/mobx/pull/2875 对应的文档更改

需同步 https://github.com/mobxjs/mobx/pull/2779 对应的文档更改

**To reproduce:** ```xml {{item.name}} {{item.username}} ``` workaround for this case: ```xml {{item.name}} {{item.username}} ``` **Current behavior:** No eslint problem hint, but get wechat miniprogram compile error ```txt Bad attr `wx:else`...