docs: add readme for the sdk #94

Job	Run time
Build and run SIP Connect Compliance Tests	5m 35s
Publish to Docker Hub / Download Artifacts	2m 56s
Publish to Docker Hub / Publish Dispatcher to Docker Hub	2m 9s
Publish to Docker Hub / Publish Location to Docker Hub	2m 18s
Publish to Docker Hub / Publish Connect to Docker Hub	4m 51s
Publish to Docker Hub / Publish EdgePort to Docker Hub	2m 2s
Publish to Docker Hub / Publish Routr One to Docker Hub	1m 34s
Publish to Docker Hub / Publish the PGData image	5m 19s
Publish to Docker Hub / Publish Requester to Docker Hub	3m 19s
Publish to Docker Hub / Publish Simpledata to Docker Hub	2m 26s
Publish to Docker Hub / Publish the Echo image	5m 1s
Publish to Docker Hub / Publish Registry to Docker Hub	2m 0s
Publish to Docker Hub / Publish the Postgres DB Migrations image	4m 6s
Publish to Docker Hub / Publish the RTPrelay image	2m 17s
	45m 53s

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