Documentation updates

Author: JulesAU

README.md

@@ -42,9 +42,16 @@ Include the install_from_source recipe to install node from sources:
 *  include_recipe "nodejs::install_from_source"
 
 Include the install_from_package recipe to install node from packages:
+Note that only apt (Ubuntu, Debian) appears to have up to date packages available.
+Centos, RHEL, etc are non-functional. (Try install_from_officialbin for those)
 
 *  include_recipe "nodejs::install_from_package"
 
+Include the install_from_officialbin recipe to install node from official prebuilt binaries:
+(Currently Linux x86, x86_64 only)
+
+*  include_recipe "nodejs::install_from_officialbin"
+
 Include the npm recipe to install npm:
 
 *  include_recipe "nodejs::npm"