update help help

src/Steeltoe.Cli/HelpCommand.cs

@@ -28,6 +28,9 @@ Overview:
   Displays documentation for various topics.  Run with no arguments for a list of available topics.
 
 Examples:
+  Display documentation topics:
+  $ st help
+
   Display documentation for autodetection:
   $ st help autodetection"
     )]

test/Steeltoe.Cli.Test/HelpFeature.cs

@@ -37,6 +37,8 @@ namespace Steeltoe.Cli.Test
                     "Overview:",
                     "Displays documentation for various topics. Run with no arguments for a list of available topics.",
                     "Examples:",
+                    "Display documentation topics:",
+                    "$ st help",
                     "Display documentation for autodetection:",
                     "$ st help autodetection",
                 })