docs: Update readme

README.md

@@ -2,7 +2,8 @@
 
 ## Adding to your dashboard
 
-You can add an overview of the current infection numbers to your dashboard using the [multiple-entity-row](https://github.com/benct/lovelace-multiple-entity-row) card:
+You can add an overview of the current infection and vaccination numbers to your dashboard
+using the [multiple-entity-row](https://github.com/benct/lovelace-multiple-entity-row) card:
 
 ```yaml
 type: entities
@@ -24,4 +25,23 @@ entities:
     secondary_info:
       attribute: incidence
       unit: cases/100k
+  - type: custom:multiple-entity-row
+    entity: sensor.covid_19_vaccinations_augsburg
+    entities:
+      - attribute: ratio_vaccinated_once
+        name: Once
+        format: precision1
+        unit: '%'
+      - attribute: num_vaccinated_full
+        name: Fully
+        format: precision1
+        unit: '%'
+      - attribute: total_vaccinations
+        name: Total doses
+    show_state: false
+    icon: mdi:biohazard
+    name: COVID-19 Vaccinations
+    secondary_info:
+      attribute: date
+      format: date
 ```