Changes and fixes before the release (docs/small tweaks) (#750)

- update README.md with new docker instructions
- update docs/configuration.md
- update .github/workflows to have pinned action versions
- gofmt events package
- fix small bugs in CI scripts
- reduce config options for internal/perf/monitor and config. A ring buffer is used to keep 1hr of entries at max 5s granularity. For long term stats use prometheus monitoring on /metrics

Fixes #744

cmd/monitor-test/main.go

@@ -75,7 +75,7 @@ func main() {
 	}
 
 	if *stream {
-		m, _ := perf.New(config.PerformanceConfig{Enable: true, Every: every}, l)
+		m, _ := perf.New(config.PerformanceConfig{Every: every}, l)
 		m.Start()
 		defer m.Stop()
 		sysCh, gpuCh, unsub := m.Subscribe()