Fix typo

JarJak · javiereguiluz · commit 3bea56b750d9 · 2022-09-27T17:24:04.000+02:00
"private services services"
diff --git a/testing.rst b/testing.rst
@@ -272,7 +272,7 @@ the container is stored in ``self::$container``::
 
 The container in ``self::$container`` is actually a special test container.
 It gives you access to both the public services and the non-removed
-:ref:`private services <container-public>` services.
+:ref:`private services <container-public>`.
 
 .. note::
 
