fix Readme markdown

Author: NikSativa

README.md

@@ -3,36 +3,36 @@
 Wrapper of GCD queue with few cool features
 
 Safe execution of a synchronous task on the main thread **from any thread including main**
-‘’’swift
+```swift
 Queue.main.sync {
     // your task on main thread
 }
-‘’’
+```
 
 ### Queueable
 Protocol can help you test your code without threading by overriding real implementation via your own mock or existing Fake from SpryKit framework.
 ### DelayedQueue
-Make it simple to manage task execution as parameter at your discretion. You can manage not only in what Queue to execute but also how sync or async.
+Make it simple to manage task execution as parameter at your discretion. You can manage not only in what Queue to execute but also how - sync or async.
 
 Use standart queues
-‘’’swift
+```swift
 Queue.background.async
-‘’’
+```
 
-‘’’swift
+```swift
 Queue.utility.asyncAfter
-‘’’
+```
 
 or easily make your own
-‘’’swift
+```swift
 Queue.custom(label: “my line”).async
-‘’’
+```
 
-‘’’swift
+```swift
 Queue.custom(label: “my line”, qos: .utility).async
-‘’’
+```
 
 you can never go wrong with creating a queue due to explicit parameters
-‘’’swift
+```swift
 Queue.custom(label: “my line”, attributes: .serial).async
-‘’’
+```