Updating README #18

Job	Run time
lint code	47s
Sqlc check	24s
sample configuration check	24s
RPC and mobile compilation check	1m 56s
check commits	0s
cross compilation	21s
check pinned dependencies (google.golang.org/grpc v1.59.0)	3s
run macOS itest	2m 28s
check pinned dependencies (github.com/golang/protobuf v1.5.3)	5s
check release notes updated	4s
run ubuntu itests (btcd, backend=btcd cover=1)	1m 55s
run unit tests (btcd unit-cover)	2m 28s
run windows itest	2m 18s
run ubuntu itests (bitcoind, backend=bitcoind cover=1)	2m 26s
run unit tests (unit tags="kvdb_etcd")	2m 26s
run ubuntu itests (bitcoind-notxindex, backend="bitcoind notxindex")	2m 26s
run unit tests (unit tags="kvdb_postgres")	2m 26s
run ubuntu itests (bitcoind-rpcpolling, backend="bitcoind rpcpolling" cover=1)	2m 15s
run unit tests (unit tags="kvdb_sqlite")	2m 25s
run ubuntu itests (bitcoind-etcd, backend=bitcoind dbbackend=etcd)	2m 32s
run unit tests (btcd unit-race)	2m 28s
run unit tests (unit-module)	1m 35s
run ubuntu itests (bitcoind-postgres, backend=bitcoind dbbackend=postgres)	2m 24s
run ubuntu itests (bitcoind-sqlite, backend=bitcoind dbbackend=sqlite)	1m 57s
run ubuntu itests (bitcoind-postgres-nativesql, backend=bitcoind dbbackend=postgres nativesql=true)	2m 18s
run ubuntu itests (bitcoind-sqlite-nativesql, backend=bitcoind dbbackend=sqlite nativesql=true)	2m 12s
run ubuntu itests (neutrino, backend=neutrino cover=1)	1m 53s
finish	3s
	44m 59s

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