copy and adapt Using Bound Services section from http://docs-runpivotal-staging.cfapps.io/devguide/services/adding-a-service.html
add new topic for Node env vars, content from http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/environment-variable.html
fix title
add new topic for Ruby env vars, content from http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/environment-variable.html
copy in material from http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/prepare-to-deploy.html#system-buildpacks
copy content of http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/troubleshoot-app-health.html#java-apps
copy content of Node Best Practices in http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/troubleshoot-app-health.html
copy content of Ruby Best Practices in http://docs-runpivotal-staging.cfapps.io/devguide/deploy-apps/troubleshoot-app-health.html
copy example from http://docs-runpivotal-staging.cfapps.io/devguide/services/migrate-db.html#migrate-ruby-db