Update README.adoc

Author: hpssjellis

README.adoc

@@ -7,7 +7,7 @@ image:https://github.com/{repository-owner}/{repository-name}/actions/workflows/
 image:https://github.com/{repository-owner}/{repository-name}/actions/workflows/compile-examples.yml/badge.svg["Compile Examples status", link="https://github.com/{repository-owner}/{repository-name}/actions/workflows/compile-examples.yml"]
 image:https://github.com/{repository-owner}/{repository-name}/actions/workflows/spell-check.yml/badge.svg["Spell Check status", link="https://github.com/{repository-owner}/{repository-name}/actions/workflows/spell-check.yml"]
 
-This library contains the complete Arduino sketches from the Arduino Pro Tutorials found [here](https://docs.arduino.cc/hardware/portenta-h7) under the corresponding product page.
+This library contains the complete Arduino sketches from the Arduino Pro Tutorials found [here](https://docs.arduino.cc/hardware/portenta-h7/) under the corresponding product page.
 
 == License ==