Update README.md

README.md

@@ -272,7 +272,7 @@ Note that although the Arduino constructor allows the bit depth to be set, it on
 
 You can create matrix keyboards with any arrangement of keys, but the two most common cases of 3x4 and 4x4 layout number pads have ready-made layouts. There is an example showing usage in detail in both polling and interrupt mode on device pins and an I2C IoExpander.
 
-Alongside the example, there is comprehensive documentation describing the use of [matrix keyboards on Arduino](https://tcmenu.github.io/documenation/arduino-libraries/io-abstraction/matrix-keyboard-keypad-manager/).  
+Alongside the example, there is comprehensive documentation describing the use of [matrix keyboards on Arduino](https://tcmenu.github.io/documentation/arduino-libraries/io-abstraction/matrix-keyboard-keypad-manager/).  
 
 ## Unit testing and mocking