review fix

Author: jmastrangelo-cpr

outdoornav_user_manual_versioned_docs/version-2.0.0/installation/updates.mdx

@@ -111,7 +111,7 @@ to update to.
 
 :::note
 
-If you have an Observer model robot please use the follow command to update
+If you have an Observer model robot please use the following command to update
 
 ```code
 python3 /opt/onav/<latest_version>/app/upgrade/update.py -v <new_version> -c observer