synchronous-vs-asynchronous/README.md - typo

Author: mwallnoefer

src/language-tools-and-standard-library/architectural-patterns/synchronous-vs-asynchronous/README.md

@@ -4,7 +4,7 @@ Input and output primitives allows for the programming of both synchronous and a
 
 ![](../../../assets/image/asyncvssync.png)
 
-It is worth noting that both of them have always an impact on the architecture of the system. The synchrOnous communication permits to have a double message exchange on the port of the receiver whereas the asynchronous one deals only with a single message exchange. Thus, if we need to implement an asynchronous request/reply message exchange we are forced to modify the architecture adding an input port to the sender and an output port to the receiver just for dealing with the reply message.
+It is worth noting that both of them have always an impact on the architecture of the system. The synchronous communication permits to have a double message exchange on the port of the receiver whereas the asynchronous one deals only with a single message exchange. Thus, if we need to implement an asynchronous request/reply message exchange we are forced to modify the architecture adding an input port to the sender and an output port to the receiver just for dealing with the reply message.
 
 ![](../../../assets/image/async.png)