Updated teiid.io to emphasize the runtime

Related to TEIID-5597, we should update teiid.io to better emphasize the runtime and the burgeoning tool chain / limited (wildfly free) docs.

Ideally starting from the landing page we should:

• make it clear our relationship to syndesis
• highlight the cloud tooling option
• introduce the the runtime via openshift quickstarts
• some other link for everyone else (wildfly / developers)