Elastic Cloud Training for Operations

Related to #346959.

We need to create some training references for Elastic Cloud to simplify the handover of managing deployments.

Elastic Cloud Training is offered through Elastic search as a Series of Webinars.

• Introduction to Elastic Cloud: Fast, simple, secure cloud for your mission-critical apps
• A hitchhiker's guide to resource-based consumption on Elastic Cloud
• From Zero to Ingest: Get Started with Elastic Cloud in Just a Few Clicks
• Elastic Cloud: The best and easiest way to unleash the power of Elastic

There will be additional training details becoming available over time.