Add UML diagram about AWS Getting started using Elastic Beanstalk

[masmangan]

Relates to #12

[masmangan]

https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/GettingStarted.html

[masmangan]

• [ ] Step 1: Create an example application
• [ ] Step 2: Explore your environment
• [x] Step 3: Deploy a new version of your application
• [ ] Step 4: Configure your environment
• [ ] Step 5: Clean up

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