Add missing space in log message and docs update (#212)

* Add missing space in log message

* Update cortex auth docs

- Variables CORTEX_TENANT_ID, CORTEX_API_KEY are not mandatory - would work for  cortex without authentication set
- Remove cortextool requirement

* Revert CORTEX_TENANT_ID,CORTEX_API_KEY required flag to true

docs/content/authentication.md

@@ -23,9 +23,7 @@ See Grafana's [Authentication API
 docs](https://grafana.com/docs/grafana/latest/http_api/auth/) for more info.
 
 ## Grafana Cloud Prometheus
-To interact with Grafana Cloud Prometheus, you must have the `cortextool` binary
-available on your path (download it [here](https://github.com/grafana/cortex-tools/releases)),
-and must have these environment variables set:
+To interact with Grafana Cloud Prometheus, you must have these environment variables set:
 
 | Name | Description | Required |
 | --- | --- | --- |

pkg/grizzly/workflow.go

@@ -338,7 +338,7 @@ func Watch(watchDir string, parser WatchParser) error {
 					return
 				}
 				if event.Op&fsnotify.Write == fsnotify.Write {
-					log.Info("Changes detected. Applying", parser.Name())
+					log.Info("Changes detected. Applying ", parser.Name())
 					resources, err := parser.Parse()
 					if err != nil {
 						log.Error("Error: ", err)