Update README.md

Signed-off-by: Volker Christian <me@vchrist.at>

README.md

@@ -1245,7 +1245,7 @@ echoClient.setOnDisconnected([] (SocketConnection* socketConnection) -> void {
 echoClient.connect(...);
 ```
 
-## The `SocketServer` Classes
+## `SocketServer` Classes
 
 Each `SocketServer` template class expects a concrete `SocketContextFactory` as template argument. This mandatory template argument is hidden in the following `SocketServer` types table.