Merge pull request #93 from digitalocean/additional-guidance-arch-spe…

…cific-components

README.md: added more detail on architecture flag caveat

README.md

@@ -45,4 +45,6 @@ The following software packages are necessary for the initial configuration of n
 
  ## Caveats
 
-Avoid building architecture specific components into your 1-Click App, as your App may be run by DigitalOcean customers across a variety of operating systems and underlying hypervisors. 
+Avoid building architecture specific components into your 1-Click App, as your App may be run by DigitalOcean customers across a variety of operating systems and underlying hypervisors. You should use generic machine architecture to ensure consistent use across all infrastructure. 
+
+For example, avoid building ruby gems with native extensions as the underlying machine architecture may use flags that don't exist across all hypervisors.