fix

Author: 256dpi

README.md

@@ -99,7 +99,7 @@ Connect to broker using the supplied client id and an optional username and pass
 
 ```c++
 boolean connect(const char * clientId);
-boolean connect(const char * clientId, const char* username, const char* password);
+boolean connect(const char * clientId, const char * username, const char * password);
 ```
 
 _This functions returns a value that indicates if the connection has been established successfully._