feat(write): Add support for templates

src/write/cli.cr

@@ -11,12 +11,16 @@ module DocMachine::Write
       config = Config.new(parent_config)
 
       opts.on("write", "Write content target for plan (beta)") do
-        opts.banner = "Usage: #{PROGRAM_NAME} scaffold [options] TARGET"
+        opts.banner = "Usage: #{PROGRAM_NAME} write [options] TARGET"
 
         opts.on("-f", "--force", "Don't ask for confirmation") do
           config.force = true
         end
 
+        opts.on("-t", "--template TEMPLATE", "Use given template") do |template_name|
+          config.template_name = template_name
+        end
+
         commands << ->() : Nil do
           Log.debug { "before any" }
           if args.size < 1

src/write/config.cr

@@ -6,6 +6,7 @@ module DocMachine::Write
 
     property target_directory : String = "."
     property force : Bool = false
+    property template_name : String = ""
 
     def initialize(@parent : DocMachine::Config)
     end