update addressbook example
diff --git a/csharp/src/AddressBook/AddPerson.cs b/csharp/src/AddressBook/AddPerson.cs
index 9a6ef60..6eeb9f6 100644
--- a/csharp/src/AddressBook/AddPerson.cs
+++ b/csharp/src/AddressBook/AddPerson.cs
@@ -86,7 +86,7 @@
                         break;

                 }

 

-                person.Phone.Add(phoneNumber);

+                person.Phones.Add(phoneNumber);

             }

             return person;

         }

@@ -119,7 +119,7 @@
             }

 

             // Add an address.

-            addressBook.Person.Add(PromptForAddress(Console.In, Console.Out));

+            addressBook.People.Add(PromptForAddress(Console.In, Console.Out));

 

             // Write the new address book back to disk.

             using (Stream output = File.OpenWrite(args[0]))

diff --git a/csharp/src/AddressBook/ListPeople.cs b/csharp/src/AddressBook/ListPeople.cs
index cc13aa1..3979430 100644
--- a/csharp/src/AddressBook/ListPeople.cs
+++ b/csharp/src/AddressBook/ListPeople.cs
@@ -42,7 +42,7 @@
         /// </summary>

         private static void Print(AddressBook addressBook)

         {

-            foreach (Person person in addressBook.Person)

+            foreach (Person person in addressBook.People)

             {

                 Console.WriteLine("Person ID: {0}", person.Id);

                 Console.WriteLine("  Name: {0}", person.Name);

@@ -51,7 +51,7 @@
                     Console.WriteLine("  E-mail address: {0}", person.Email);

                 }

 

-                foreach (Person.Types.PhoneNumber phoneNumber in person.Phone)

+                foreach (Person.Types.PhoneNumber phoneNumber in person.Phones)

                 {

                     switch (phoneNumber.Type)

                     {

diff --git a/csharp/src/AddressBook/SampleUsage.cs b/csharp/src/AddressBook/SampleUsage.cs
index 0a48508..936c3be 100644
--- a/csharp/src/AddressBook/SampleUsage.cs
+++ b/csharp/src/AddressBook/SampleUsage.cs
@@ -46,7 +46,7 @@
                 Id = 1,

                 Name = "Foo",

                 Email = "foo@bar",

-                Phone = { new Person.Types.PhoneNumber { Number = "555-1212" } }

+                Phones = { new Person.Types.PhoneNumber { Number = "555-1212" } }

             };

             using (MemoryStream stream = new MemoryStream())

             {

@@ -61,7 +61,7 @@
             // And read the address book back again

             AddressBook restored = AddressBook.Parser.ParseFrom(bytes);

             // The message performs a deep-comparison on equality:

-            if (restored.Person.Count != 1 || !person.Equals(restored.Person[0]))

+            if (restored.People.Count != 1 || !person.Equals(restored.People[0]))

             {

                 throw new ApplicationException("There is a bad person in here!");

             }