Link to helpful article on Capistrano deployment

@SamSaffron mentioned in #809 he wouldn't mind me linking to a helpful
article on Capistrano deployment in those sample files. My totally
unbiased opinion is that the one I've committed here is the best one.
😉

Signed-off-by: David Celis <me@davidcel.is>

Capfile.sample

@@ -1,3 +1,6 @@
+# For help deploying via Capistrano, see this thread:
+# http://meta.discourse.org/t/deploy-discourse-to-an-ubuntu-vps-using-capistrano/6353
+
 load 'deploy' if respond_to?(:namespace)
 load 'deploy/assets'
 Dir['vendor/plugins/*/recipes/*.rb'].each { |plugin| load(plugin) }

config/deploy.rb.sample

@@ -2,6 +2,9 @@
 # One of the recipes (deploy:symlink_nginx) assumes you have an nginx configuration
 # file at config/nginx.conf. You can make this easily from the provided sample
 # nginx configuration file.
+#
+# For help deploying via Capistrano, see this thread:
+# http://meta.discourse.org/t/deploy-discourse-to-an-ubuntu-vps-using-capistrano/6353
 
 require 'bundler/capistrano'
 require 'sidekiq/capistrano'