make clear that shop=pet_grooming is for pet groomer (#790)

Author: matkoniecz

data/presets/shop/pet_grooming.json

@@ -11,5 +11,5 @@
     "tags": {
         "shop": "pet_grooming"
     },
-    "name": "Pet Grooming Store"
+    "name": "Pet Groomer"
 }