fix code example for property info

Author: OskarStark

components/property_info.rst

@@ -229,27 +229,30 @@ This is based on how :doc:`PropertyAccess </components/property_access>` works,
 so it even looks for adder/remover methods and can transform between singular
 and plural property names::
 
+    use Acme\Entity\Analysis;
+    use Acme\Entity\Foot;
+
     class SomeClass
     {
         private $analyses;
         private $feet;
 
-        public function addAnalyse(Dummy $analyse)
+        public function addAnalysis(Analysis $analysis)
         {
             // ...
         }
 
-        public function removeAnalyse(Dummy $analyse)
+        public function removeAnalysis(Analysis $analysis)
         {
             // ...
         }
 
-        public function addFoot(Dummy $foot)
+        public function addFoot(Foot $foot)
         {
             // ...
         }
 
-        public function removeFoot(Dummy $foot)
+        public function removeFoot(Foot $foot)
         {
             // ...
         }