docs: Use includes for notes

[eriklimakc]

GitHub Issue (If applicable): closes #

PR Type

What kind of change does this PR introduce?

What is the current behavior?

NOTE, IMPORTANT and TIP boxes repeting among docs.

What is the new behavior?

Added a include folder with content that often repeats.

PR Checklist

Please check if your PR fulfills the following requirements:

• [X] Tested with docfx
• [ ] Associated with an issue (GitHub or internal)