Minor changes in Install index

Signed-off-by: Pedro Ielpi <[email protected]>

Author: pedroielpi3

content/install/_index.md

@@ -5,7 +5,8 @@ weight: 3
 description: 
 ---
 
-+[TBD possibly short intro text to mention the ways to install OpenNebula and linking to:]
++[TBD. Brief overview linking to EE offerings and explaining the various ways to install OpenNebula:]
 
 - [Try OpenNebula with miniONE]({{% relref "try_opennebula_with_minione" %}})
 - [Automatic Installation with OneDeploy]({{% relref "automatic_deployment_of_opennebula_with_one_deploy" %}})
+- [Package Installation References]({{% relref "package_installation_references" %}})