adds candidate recruitment project label field

completes #93

db/migrate/20170208212526_add_project_to_client.rb

@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+class AddProjectToClient < ActiveRecord::Migration[5.0]
+  def change
+    add_column :candidates, :project, :string, after: :experience
+  end
+end