README.md in esx-0.2 vs README.md in esx-0.2.1

@@ -6,9 +6,21 @@
 
 If you want a full VMWare vSphere API ruby implementation have a look at https://github.com/rlane/rbvmomi
 
 # Installation
 
+## Ubuntu/Debian
+  
+  apt-get install libxml2-dev libxslt-dev gcc make rubygems
+  gem install esx
+
+## RHEL/Fedora
+
+  yum install libxml2-devel libxslt-devel make gcc rubygems
+  gem install esx
+
+## MacOSX
+
   gem install esx
 
 # Usage