Update docs/frontend/custom-ui/registering-resources.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

docs/frontend/custom-ui/registering-resources.md

@@ -20,7 +20,7 @@ This area is only available when the active user's profile has "advanced mode" e
 
 ![Screenshot of the Advanced Mode selector found on the Profile page](/img/en/frontend/frontend-profile-advanced-mode.png)
 
-Alternatively, you can also register thee resource by adding it to the `resources` section of `lovelace` in the configuration:
+Alternatively, you can also register the resource by adding it to the `resources` section of `lovelace` in the configuration:
 ```yaml
 resources:
  - url: /local/<name of the resource>.js