urlwatch is intended to help you watch changes in webpages and get
notified (via email, in your terminal or with a custom-written
reporter class) of any changes. The change notification will include
the URL that has changed and a unified diff of what has changed.
A default config is ~/.urlwatch/urlwatch.yaml.
use "urlwatch --edit-config" to customize it.
You need to create ~/.urlwatch/urls.yaml in order to use urlwatch.
Use "urlwatch --edit" to open the file with your editor.
Please look in
TIPS AND TRICKS what to use in urls.yaml.