Updating README #19

Job	Run time
RPC and mobile compilation check	1m 56s
sample configuration check	27s
check commits	0s
lint code	46s
cross compilation	25s
Sqlc check	33s
run unit tests (btcd unit-cover)	12m 37s
check pinned dependencies (google.golang.org/grpc v1.59.0)	3s
run unit tests (unit tags="kvdb_etcd")	18m 21s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	4s
run macOS itest	1h 1m 39s
run unit tests (unit tags="kvdb_postgres")	17m 12s
run unit tests (unit tags="kvdb_sqlite")	16m 15s
check release notes updated	3s
run unit tests (btcd unit-race)	34m 41s
run ubuntu itests (btcd, backend=btcd cover=1)	42m 58s
run unit tests (unit-module)	1m 29s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	50m 47s
run windows itest	34m 39s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	51m 26s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	51m 13s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	1h 9m 59s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	1h 25m 49s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	53m 46s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	1h 26m 13s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	54m 21s
run ubuntu itests (neutrino, backend=neutrino cover=1)	51m 4s
finish	6s
	13h 18m 52s

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