add best practices badge #83

Job	Run time
End-to-End test with kured with code and manifests from HEAD (command) (1.27)	3m 15s
Run go tests	1m 4s
End-to-End test with kured with code and manifests from HEAD (signal) (1.27)	3m 31s
End-to-End test with kured with code and manifests from HEAD (command) (1.28)	3m 16s
End-to-End test with kured with code and manifests from HEAD (concurrent) (1.27)	3m 15s
End-to-End test with kured with code and manifests from HEAD (signal) (1.28)	3m 19s
End-to-End test with kured with code and manifests from HEAD (concurrent) (1.28)	3m 23s
End-to-End test with kured with code and manifests from HEAD (command) (1.29)	2m 21s
Check docs for incorrect links	4s
End-to-End test with kured with code and manifests from HEAD (concurrent) (1.29)	2m 17s
End-to-End test with kured with code and manifests from HEAD (signal) (1.29)	2m 25s
Lint golang code	16s
Lint bash code with shellcheck	4s
Build image and scan it against known vulnerabilities	1m 17s
	29m 47s

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