Update events.yml with CIO Enterprise ‍‍Summit Paris, April 21, 2020

Why is this change being made?

Added the CIO Enterprise ‍‍Summit Paris, April 21, 2020 event to the events page to increase registrations.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what