Update README.md: update installation info

README.md

@@ -9,15 +9,11 @@ C++ driver to monitor the paylaod battery for the Tibi, Dabo and Teo platforms.
 
 * Add the labrobotica repository if it is not already added:
 
-    ``` sudo sh -c 'echo "deb [arch=amd64] http://labrepo.iri.upc.edu/packages xenial main" > /etc/apt/sources.list.d/labrobotica_repo.list' ```
-
-    ``` wget -O - http://labrepo.iri.upc.edu/labrobotica_repo.gpg.key | sudo apt-key add - ```
-
-    ``` sudo apt update ```
+Run the commands on _add repository_ and _add key_ from [labrobotica_how_to installation](https://gitlab.iri.upc.edu/labrobotica/labrobotica_how_to/-/blob/master/README.md#installation)
 
 * Install the package:
 
-    ``` sudo apt install iri-battery-monitor-dev ```
+``` sudo apt update && sudo apt install iri-battery-monitor-dev ```
 
 ## Important information