docs: fix typo in README (#298)

Author: silverwind

README.md

@@ -90,7 +90,7 @@ Some env options are available for use this interface for **only one server** (w
 - `NGINX_PROXY_PASS_HEADER_*`: Update the default Nginx configuration and **forward custom headers** to your backend docker registry via environment variable and file (`/etc/nginx/.env`). Only when `NGINX_PROXY_PASS_URL` is used (see [#206](https://github.com/Joxit/docker-registry-ui/issues/206)). Since 2.1.0
 - `NGINX_LISTEN_PORT`: Listen on a port other than 80, you can also change the default user and set to nginx `--user nginx` (see [#224](https://github.com/Joxit/docker-registry-ui/issues/224) and [#234](https://github.com/Joxit/docker-registry-ui/pull/234)). (default: `80` when the user is root, `8080` otherwise). Since 2.2.0
 - `DEFAULT_REGISTRIES`: List of comma separated registry URLs (e.g `http://registry.example.com,http://registry:5000`), available only when `SINGLE_REGISTRY=false` (see [#219](https://github.com/Joxit/docker-registry-ui/pull/219)). (default: ` `). Since 2.1.0
-- `READ_ONLY_REGISTRIES`: Desactivate dialog for remove and add new registries, available only when `SINGLE_REGISTRY=false` (see [#219](https://github.com/Joxit/docker-registry-ui/pull/219)). (default: `false`). Since 2.1.0
+- `READ_ONLY_REGISTRIES`: Deactivate dialog for remove and add new registries, available only when `SINGLE_REGISTRY=false` (see [#219](https://github.com/Joxit/docker-registry-ui/pull/219)). (default: `false`). Since 2.1.0
 - `SHOW_CATALOG_NB_TAGS`: Show number of tags per images on catalog page. This will produce + nb images requests, not recommended on large registries (see [#161](https://github.com/Joxit/docker-registry-ui/issues/161) and [#239](https://github.com/Joxit/docker-registry-ui/pull/239)). (default: `false`). Since 2.2.0
 - `HISTORY_CUSTOM_LABELS`: Expose custom labels in history page, custom labels will be processed like maintainer label (see [#160](https://github.com/Joxit/docker-registry-ui/issues/160) and [#240](https://github.com/Joxit/docker-registry-ui/pull/240)). Since 2.2.0
 - `USE_CONTROL_CACHE_HEADER`: Use `Control-Cache` header and set to `no-store, no-cache`. This will avoid some issues on multi-arch images (see [#260](https://github.com/Joxit/docker-registry-ui/issues/260) and [#265](https://github.com/Joxit/docker-registry-ui/pull/265)). This option requires registry configuration: `Access-Control-Allow-Headers` with `Cache-Control`. (default: `false`). Since 2.3.0