Merge branch 'update-doc' into 'master'

update: doc: url attr is not required for google analytics

See merge request !32

README.md

@@ -64,7 +64,7 @@ Manage browsing statistics.
 `<sib-analytics>` accepts the following attributes:
  
  - **`type`**: the type of web analytics service used (currently supports `'matomo'` or `'google'`).
- - **`url`**: URL of the service. for `type="google"` it is not necessary to specify the url parameter.
+ - **`url`**: URL of the service. for `type="google"` it is not necessary to specify the url attribute.
  - **`id`**: id of the website on the service.
 
 ## Interacting with the router