Update README.md

README.md

@@ -32,7 +32,7 @@ Just drop the **Reachability.swift** file into your project. That's it!
 ## Example - closures
 
 ````
-    let reachability: Reachability?
+    let reachability: Reachability
     do {
         reachability = try Reachability.reachabilityForInternetConnection()
     } catch {
@@ -41,7 +41,7 @@ Just drop the **Reachability.swift** file into your project. That's it!
     }
 
 
-    reachability!.whenReachable = { reachability in
+    reachability.whenReachable = { reachability in
         // this is called on a background thread, but UI updates must
         // be on the main thread, like this:
         dispatch_async(dispatch_get_main_queue()) {
@@ -52,7 +52,7 @@ Just drop the **Reachability.swift** file into your project. That's it!
             }
         }
     }
-    reachability!.whenUnreachable = { reachability in
+    reachability.whenUnreachable = { reachability in
         // this is called on a background thread, but UI updates must
         // be on the main thread, like this:
         dispatch_async(dispatch_get_main_queue()) {
@@ -61,7 +61,7 @@ Just drop the **Reachability.swift** file into your project. That's it!
     }
 
     do {
-        try reachability!.startNotifier()
+        try reachability.startNotifier()
     } catch {
         print(\"Unable to start notifier")
     }
@@ -71,7 +71,7 @@ Just drop the **Reachability.swift** file into your project. That's it!
 and for stopping notifications
 
 ````
-reachability?.stopNotifier()
+reachability.stopNotifier()
 ````
 
 ## Example - notifications
@@ -79,7 +79,7 @@ reachability?.stopNotifier()
 This sample will use `NSNotification`s to notify when the interface has changed. They will be delivered on the **MAIN THREAD**, so you *can* do UI updates from within the function.
 
 ````
-    let reachability: Reachability?
+    let reachability: Reachability
     do {
         reachability = try Reachability.reachabilityForInternetConnection()
     } catch {
@@ -90,9 +90,9 @@ This sample will use `NSNotification`s to notify when the interface has changed.
     NSNotificationCenter.defaultCenter().addObserver(self, 
                                                      selector: "reachabilityChanged:", 
                                                      name: ReachabilityChangedNotification, 
-                                                     object: reachability!)
+                                                     object: reachability)
     
-    reachability!.startNotifier()
+    reachability.startNotifier()
 ````
 
 and
@@ -117,10 +117,10 @@ and
 and for stopping notifications
 
 ````
-reachability!.stopNotifier()
+reachability.stopNotifier()
 NSNotificationCenter.defaultCenter().removeObserver(self, 
                                                     name: ReachabilityChangedNotification, 
-                                                    object: reachability!)
+                                                    object: reachability)
 ````
 
 ## Want to help?