Update CLI command usage messages

Author: deliahu

cli/cmd/predict.go

@@ -40,7 +40,7 @@ func init() {
 
 var predictCmd = &cobra.Command{
 	Use:   "predict API_NAME SAMPLE_FILE",
-	Short: "make predictions",
+	Short: "make a prediction request",
 	Long: `This command makes a prediction request using
 a JSON file and displays the response.`,
 	Args: cobra.ExactArgs(2),

cli/cmd/support.go

@@ -66,8 +66,8 @@ var supportPrompValidation = &cr.PromptValidation{
 
 var supportCmd = &cobra.Command{
 	Use:   "support",
-	Short: "request support from Cortex maintainers",
-	Long:  `This command sends a support request to Cortex maintainers.`,
+	Short: "send a support request to Cortex maintainers",
+	Long:  `This command sends a support request to the Cortex maintainers`,
 	Run: func(cmd *cobra.Command, args []string) {
 		supportRequest := &SupportRequest{}
 		err := cr.ReadPrompt(supportRequest, supportPrompValidation)

cli/cmd/version.go

@@ -33,8 +33,8 @@ func init() {
 
 var versionCmd = &cobra.Command{
 	Use:   "version",
-	Short: "print the version of the Cortex CLI and cluster",
-	Long:  `This command prints the version of the Cortex CLI and cluster`,
+	Short: "print the version of the CLI and cluster",
+	Long:  `This command prints the version of the CLI and cluster`,
 	Args:  cobra.NoArgs,
 	Run: func(cmd *cobra.Command, args []string) {
 		httpResponse, err := HTTPGet("/info")

docs/cluster/cli.md

@@ -185,7 +185,7 @@ Flags:
 ## support
 
 ```text
-This command sends a support request to Cortex developers.
+This command sends a support request to the Cortex maintainers
 
 Usage:
   cortex support [flags]
@@ -196,7 +196,7 @@ Flags:
 
 ## version
 
-This command prints the version of the Cortex CLI and cluster
+This command prints the version of the CLI and cluster
 
 Usage:
   cortex version [flags]