Test

Add installation in README (#238) #582

Job	Run time
test-backup-restore-api (docker-compose, standalone, L0)	12m 36s
test-backup-restore-cross-version (docker-compose, standalone, standalone)	4m 6s
test-backup-restore-cli (docker-compose, standalone, standalone)	3m 29s
test-backup-restore-api (docker-compose, standalone, L1)	7m 54s
test-backup-restore-cli (docker-compose, standalone, cluster)	3m 58s
test-backup-restore-with-custom-config (helm, standalone, milvus-backup)	5m 1s
test-backup-restore-cli (docker-compose, cluster, standalone)	4m 39s
test-backup-restore-with-custom-config (helm, standalone, milvus-bucket)	6m 6s
test-backup-restore-cli (docker-compose, cluster, cluster)	3m 41s
test-backup-restore-with-custom-config (helm, standalone, file, milvus-backup)	5m 39s
test-backup-restore-with-custom-config (helm, standalone, file, milvus-bucket)	4m 48s
	1h 1m 57s

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