update workflow

Gemfile

@@ -0,0 +1,21 @@
+source "https://rubygems.org"
+ruby RUBY_VERSION
+
+# Hello! This is where you manage which Jekyll version is used to run.
+# When you want to use a different version, change it below, save the
+# file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
+#
+#     bundle exec jekyll serve
+#
+# This will help ensure the proper Jekyll version is running.
+# Happy Jekylling!
+gem "jekyll"
+gem "jekyll-scholar"
+
+Encoding.default_external = Encoding::UTF_8
+Encoding.default_internal = Encoding::UTF_8
+
+
+gem "rexml", "~> 3.2"
+
+gem "ffi", "~> 1.11"