Tweaking a few titles

weaverryan · weaverryan · commit 1d4692977a98 · 2016-07-11T15:12:45.000-04:00
diff --git a/service_container/service_container/debug.rst b/service_container/service_container/debug.rst
@@ -2,8 +2,8 @@
     single: DependencyInjection; Debug
     single: Service Container; Debug
 
-How to Debug the Service Container
-==================================
+How to Debug the Service Container & List Services
+==================================================
 
 You can find out what services are registered with the container using the
 console. To show all services and the class for each service, run:
diff --git a/service_container/service_container/import.rst b/service_container/service_container/import.rst
@@ -2,8 +2,8 @@
     single: DependencyInjection; Importing Resources
     single: Service Container; Importing Resources
 
-How to Import Configuration Resources
-=====================================
+How to Import Configuration Files/Resources
+===========================================
 
 .. tip::
 
diff --git a/service_container/service_container/optional_dependencies.rst b/service_container/service_container/optional_dependencies.rst
@@ -1,5 +1,5 @@
-How to Make References Optional
-===============================
+How to Make Service Arguments/References Optional
+=================================================
 
 Sometimes, one of your services may have an optional dependency, meaning
 that the dependency is not required for your service to work properly. In
diff --git a/service_container/service_container/tags.rst b/service_container/service_container/tags.rst
@@ -2,8 +2,8 @@
     single: DependencyInjection; Tags
     single: Service Container; Tags
 
-How to Work with Tags
-=====================
+How to Work with Service Tags
+=============================
 
 In the same way that a blog post on the web might be tagged with things such
 as "Symfony" or "PHP", services configured in your container can also be
