Updated README

README.md

@@ -212,12 +212,12 @@ Only failable tasks can be cancelled.
 
 #### The main thread
 
-Even if you cannot "await" a task on main thread, you still can start a background task from the main thread. If you want to handle its completion you can use `TaskWaiter` helper class. If the queue parameter is not added, the callback closure will be called on the main thread.
+Even if you cannot "await" a task on main thread, you still can start a background task from the main thread. If you want to handle its completion you may use `TaskWaiter` helper class. If the queue parameter is not added, the callback closures will be called on the main thread.
 
 ```swift
 // this code is running on the main thread
 TaskWaiter(task: asyncCalculate())
-    .didFinishWithValue { vaue in
+    .didFinishWithValue { value in
         print("The result is \(value)")
     }
     .didFinishWithError { error in
@@ -227,7 +227,7 @@ TaskWaiter(task: asyncCalculate())
         print("Task was cancelled")
     }
     .didFinish { task in
-        // this closure will be called always even if a task was cancelled
+        // this closure will be always called, even if the task was cancelled
 
         if let error = error where !error.userCancelled {
             // do a nice error handling here
@@ -257,7 +257,7 @@ func asyncCalculate() -> Task<Int> {
 }
 ```
 
-The difference between a failable task and a non-failable task is that a non-failable does not have the `didFinishWithError` nor `didCancel` methods.
+The difference between a failable task and a non-failable task is that a non-failable task waiter is called `NonFailableTaskWaiter` and it does not have the `didFinishWithError` nor `didCancel` methods.
 
 ### Considerations