feat(v2): add CLI option for polling (#2630)

* Add CLI option to polling

Some environments (specifically docker containers) can have issues with file watching for live reloads. [Webpack Dev Server provides a polling alternative](https://webpack.js.org/configuration/watch/#watchoptionspoll) option for this

* Update docusaurus.js

* Update cli.md

Co-authored-by: Yangshun Tay <tay.yang.shun@gmail.com>
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Tom Brien 2020-04-20 03:49:43 +01:00 committed by GitHub
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@ -48,6 +48,7 @@ Builds and serves a preview of your site locally with [Webpack Dev Server](https
| `--host` | `localhost` | Specify a host to use. E.g., if you want your server to be accessible externally, you can use `--host 0.0.0.0` |
| `--hot-only` | `false` | Enables Hot Module Replacement without page refresh as fallback in case of build failures. More information [here](https://webpack.js.org/configuration/dev-server/#devserverhotonly). |
| `--no-open` | `false` | Do not open automatically the page in the browser. |
| `--poll` | `false` | Use polling of files rather than watching for live reload as a fallback in environments where watching doesn't work. More information [here](https://webpack.js.org/configuration/watch/#watchoptionspoll). |
:::important