Add bin and edit workflow

bin/gems/mercenary-0.4.0/examples/logging.rb

@@ -0,0 +1,35 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+$LOAD_PATH.unshift File.join(__dir__, "..", "lib")
+
+require "mercenary"
+
+# This example sets the logging mode of mercenary to
+# debug. Logging messages from "p.logger.debug" will
+# be output to STDOUT.
+
+Mercenary.program(:logger_output) do |p|
+  p.version "5.2.6"
+  p.description "An example of turning on logging for Mercenary."
+  p.syntax "logger_output"
+
+  p.logger.info "The default log level is INFO. So this will output."
+  p.logger.debug "Since DEBUG is below INFO, this will not output."
+
+  p.logger(Logger::DEBUG)
+  p.logger.debug "Logger level now set to DEBUG. So everything will output."
+
+  p.logger.debug    "Example of DEBUG level message."
+  p.logger.info     "Example of INFO level message."
+  p.logger.warn     "Example of WARN level message."
+  p.logger.error    "Example of ERROR level message."
+  p.logger.fatal    "Example of FATAL level message."
+  p.logger.unknown  "Example of UNKNOWN level message."
+
+  p.action do |_args, _options|
+    p.logger(Logger::INFO)
+    p.logger.debug "Logger level back to INFO. This line will not output."
+    p.logger.info "This INFO message will output."
+  end
+end