add summary + link to API design doc in the readme #290

Job	Run time
musl	1m 58s
Soundness / API breakage check	1m 40s
Soundness / Documentation check	1m 27s
Soundness / Broken symlinks check	2s
Soundness / Format check	38s
Soundness / License headers check	3s
Soundness / Unacceptable language check	7s
Soundness / Shell check	0s
Soundness / YAML lint check	3s
Swift 6 Language Mode / Swift 6 language mode	1m 10s
Integration Tests / Test archive plugin	2m 30s
Integration Tests / Test Examples/HelloWorld on 6.0.1-amazonlinux2	1m 15s
Soundness / Python lint check	0s
Integration Tests / Test Examples/APIGateway on 6.0.1-amazonlinux2	1m 17s
Integration Tests / Test Examples/S3_AWSSDK on 6.0.1-amazonlinux2	3m 55s
Integration Tests / Test Examples/S3_Soto on 6.0.1-amazonlinux2	4m 44s
Unit tests / Unit tests / Linux (5.9)	23s
Unit tests / Unit tests / Windows (6.0)	3s
Unit tests / Unit tests / Linux (5.10)	23s
Unit tests / Unit tests / Linux (6.0)	1m 22s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 40s
Unit tests / Unit tests / Windows (nightly-6.0)	3s
Unit tests / Unit tests / Linux (nightly-main)	1m 43s
Unit tests / Unit tests / Windows (nightly-main)	1s
	26m 27s

Provide feedback