added Gemfile

Gemfile

@@ -0,0 +1,32 @@
+#
+#  Author: Hari Sekhon
+#  Date: 2022-05-13 15:25:18 +0100 (Fri, 13 May 2022)
+#
+#  vim:ts=4:sts=4:sw=4:et
+#
+#  https://github.com/HariSekhon/DevOps-Bash-tools
+#
+#  License: see accompanying Hari Sekhon LICENSE file
+#
+#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
+#
+#  https://www.linkedin.com/in/HariSekhon
+#
+
+# ============================================================================ #
+#                                 G e m f i l e
+# ============================================================================ #
+
+# https://bundler.io/gemfile.html
+
+# This isn't automatically installed since ruby code is not much used in this repo
+
+# see also:
+#
+#   setup/gem-packages.txt
+#   setup/gem-packages-desktop.txt  # optional for desktop use
+
+source 'https://rubygems.org'
+
+gem 'cfn-nag'
+gem 'json'