Added new links and new sections

[fmedery]

Thank you for your contribution!

Issue #, if available

No issue, just new content

Description of awesomeness

• Updated the link to amazon vpc cni to the latest version
• Added a lot of new links
• Created a new section for cost optimization
• Added years categories for videos and added new ones.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.