Update README.md

Fixed ambiguous language (i.e. "In the class above the constructor"), which implies there is an embedded private class within the SpeakersViewModel class definition.

HandsOnLab/README.md

@@ -75,14 +75,14 @@ We will code a helper method named **OnPropertyChanged** that will raise the **P
 
 ##### C# 6 (Visual Studio 2015 or Xamarin Studio on Mac)
 ```csharp
-void OnPropertyChanged([CallerMemberName] string name = null) =>
+private void OnPropertyChanged([CallerMemberName] string name = null) =>
     PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
 ```
 
 
 ##### C# 5 (Visual Studio 2012 or 2013)
 ```csharp
-void OnPropertyChanged([CallerMemberName] string name = null)
+private void OnPropertyChanged([CallerMemberName] string name = null)
 {
     var changed = PropertyChanged;
 
@@ -101,7 +101,7 @@ We will create a backing field and accessors for a boolean property. This will l
 First, create the backing field:
 
 ```csharp
-bool busy;
+private bool busy;
 ```
 
 Next, create the property:
@@ -124,7 +124,7 @@ Notice that we call **OnPropertyChanged();** whenever the value changes. The Xam
 
 We will use an **ObservableCollection<Speaker>** that will be cleared and then loaded with speakers. We will use an **ObservableCollection** because it has built-in support for **CollectionChanged** events when we Add or Remove from it. This is very nice so we don't have to call **OnPropertyChanged** each time.
 
-In the class above the constructor declare an auto-property:
+Above the constructor of the SpeakersViewModel class definition, declare an auto-property:
 
 ```csharp
 public ObservableCollection<Speaker> Speakers { get; set; }
@@ -146,7 +146,7 @@ We are now set to create a method named **GetSpeakers** which will retrieve the
 First, create a method called **GetSpeakers** which is of type *async Task* (it is a Task because it is using Async methods):
 
 ```csharp
-async Task GetSpeakers()
+private async Task GetSpeakers()
 {
 
 }
@@ -156,7 +156,7 @@ The following code will be written INSIDE of this method:
 First is to check if we are already grabbing data:
 
 ```csharp
-async Task GetSpeakers()
+private async Task GetSpeakers()
 {
     if(IsBusy)
         return;
@@ -166,7 +166,7 @@ async Task GetSpeakers()
 Next we will create some scaffolding for try/catch/finally blocks:
 
 ```csharp
-async Task GetSpeakers()
+private async Task GetSpeakers()
 {
     if (IsBusy)
         return;
@@ -224,7 +224,7 @@ if (error != null)
 The completed code should look like:
 
 ```csharp
-async Task GetSpeakers()
+private async Task GetSpeakers()
 {
     if (IsBusy)
         return;