docs(guide/di): fix typo

Author: fauverism

docs/content/guide/di.ngdoc

@@ -24,7 +24,7 @@ There are only three ways an object or a function can get a hold of its dependen
 
 
 The first two options of creating or looking up dependencies are not optimal because they hard
-code the dependency. This make it difficult, if not impossible, to modify the dependencies.
+code the dependency. This makes it difficult, if not impossible, to modify the dependencies.
 This is especially problematic in tests, where it is often desirable to provide mock dependencies
 for test isolation.