Subscription process description:
1. Go to https://account.cern.ch/account to register a CERN external account.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
2. Use the registered account to log in to the subscription link:
https://e-groups.cern.ch/e-groups/EgroupsSearch.do
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
3. Search in the login interface: TDLI- school, click subscribe to subscribe.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
