Use explicit package name in "docsgen" CLI package import

The template "docsgen" program for generating the website Cobra CLI reference content relies on the project's Cobra CLI
package being named `cli`. But this is not guaranteed to be so, and in fact the Cobra documentation uses `cmd` instead.

Confusion caused by applying the program to projects that use different package names will be avoided by specifying an
explicit package name in the import statement.

Author: per1234

workflow-templates/assets/cobra/docsgen/main.go

@@ -18,8 +18,8 @@ package main
 import (
 	"os"
 
-	// TODO: Replace CLI_PACKAGE_NAME with the project's Cobra CLI package name
-	"CLI_PACKAGE_NAME"
+	// TODO: Replace CLI_PACKAGE_NAME with the project's Cobra CLI package import path
+	cli "CLI_PACKAGE_NAME"
 	"github.com/spf13/cobra/doc"
 )