Merge branch 'update-readme-md-usage' into 'master'

Update README.md usage example

See merge request gitlab-org/gitlab-workhorse!342

README.md

@@ -37,7 +37,7 @@ gitlab-workhorse'][brief-history-blog].
 
 Options:
   -apiCiLongPollingDuration duration
-        Long polling duration for job requesting for runners (default 0s - disabled)
+      Long polling duration for job requesting for runners (default 50s - enabled) (default 50ns)
   -apiLimit uint
       Number of API requests allowed at single time
   -apiQueueDuration duration
@@ -48,6 +48,8 @@ Options:
       Authentication/authorization backend (default "http://localhost:8080")
   -authSocket string
       Optional: Unix domain socket to dial authBackend at
+  -config string
+      TOML file to load config from
   -developmentMode
       Allow the assets to be served from Rails app
   -documentRoot string
@@ -58,14 +60,18 @@ Options:
       Listen 'network' (tcp, tcp4, tcp6, unix) (default "tcp")
   -listenUmask int
       Umask for Unix socket
+  -logFile string
+      Log file location
+  -logFormat string
+      Log format to use defaults to text (text, json, structured, none) (default "text")
   -pprofListenAddr string
       pprof listening address, e.g. 'localhost:6060'
+  -prometheusListenAddr string
+      Prometheus listening address, e.g. 'localhost:9229'
   -proxyHeadersTimeout duration
       How long to wait for response headers when proxying the request (default 5m0s)
   -secretPath string
       File with secret key to authenticate with authBackend (default "./.gitlab_workhorse_secret")
-  -config string
-    	File that hold configuration. Currently only for redis. File is in TOML-format (default "")
   -version
       Print version and exit
 ```