improve doc, add genesis flag to solo (#712) #27

Job	Run time
Generate Docker Tags	1s
Run Unit Tests / test_coverage	2m 4s
E2E Tests / Build Docker image	1m 39s
Run Unit Tests / unit_tests (1.21.x, ubuntu-latest)	15s
Lint / golangci-lint	1m 18s
Run Unit Tests / unit_tests (1.21.x, macos-latest)	1m 29s
Run Unit Tests / unit_tests (1.21.x, windows-latest)	3m 2s
Run Unit Tests / unit_tests (1.19.x, ubuntu-latest)	21s
Run Unit Tests / unit_tests (1.20.x, ubuntu-latest)	26s
E2E Tests / Run Tests	1m 10s
Publish Docker Image / Build and Push Docker Image	11m 42s
Notify Slack	0s
	23m 27s

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