Update README

packages/app-shell/README.md

@@ -28,6 +28,15 @@ npm i @dbp-toolkit/app-shell
     - example `<dbp-app-shell matomo-url="https://my-matomo.tld"></dbp-app-shell>`
 - `matomo-site-id` (optional): set to your site id (required only for tracking)
     - example `<dbp-app-shell matomo-site-id="456789"></dbp-app-shell>`
+- `no-welcome-page` (optional): skips the welcome page and welcome page isn't visible in menu
+    - example `<dbp-app-shell no-welcome-page></dbp-app-shell>`
+- `shell-name` (optional, default: ``): sets the shell name in the left upper corner of the header
+  - example `<dbp-app-shell shell-name="Testpage"></dbp-app-shell>`
+- `shell-subname` (optional, default: ``): sets the shell subname in the left upper corner of the header
+  - example `<dbp-app-shell shell-name="Testpage subtitle"></dbp-app-shell>`
+- `no-brand` (optional): disables the logo in the right upper corner of the header
+  - example `<dbp-app-shell no-brand></dbp-app-shell>`
+  
 
 ### Emitted attributes