Better content on ECS Task Execution role

[nathanpeck]

Description

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• [ ] Understand the repository structure
• [ ] Add yourself as an author
• [ ] Add your pattern
• [ ] Add a great SVG diagram for your pattern
• [ ] Read our general contribution guidelines
• [ ] Read our code of conduct
• [ ] Confirm your pattern frontmatter lints correctly. i.e. run npm install && npm run lint locally from your dev environment

[containers-aws-bot]

container-patterns PR Release triggered by aws-samples

👋 Thank you for your PR! Preview environment release has started. This conversation will be updated with a preview URL soon.

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Commit ref: iam-roles Commit sha: b186ddb108bc776ac3d7876be948399611107a7e

✅ Release succeeded

🔗 Link to Preview URL

[containers-aws-bot]

container-patterns PR Release triggered by aws-samples

👋 Thank you for your PR! Preview environment release has started. This conversation will be updated with a preview URL soon.

🔗 Link to Action run

Commit ref: iam-roles Commit sha: 3fb55e8d5871c1624ce158282905bbdaf7bab599

✅ Release succeeded

🔗 Link to Preview URL

[containers-aws-bot]

📄 PR has been closed.

✅ The Amplify preview environment has been removed. ✅ Working branch has been deleted according to policy.