Documentation updates: usage tracking, link and manifest fixes

[surajkota]

Description of your changes:

• Bring in changes from Documentation updates: usage tracking, vanilla Kubeflow and more #114:
  • TODO item from Add AWS Telemetry #109 regarding detailed documentation for telemetry component
  • Changed the name from AWS distribution of Kubeflow to Kubeflow on AWS to be consistent with website and usage tracking documentation
  • Added a section in vanilla Kubeflow readme: Exposing Kubeflow over Load Balancer to this #67 to expose deployment over LoadBalancer.
• adds fixes for a few broken links
• Sync the knative manifest for other deployment options with vanilla corresponding to this change. This was a missed in initial PR because of looking at 2 branches to create this one

Testing

• links working as expected
• tested kfserving model using steps from [Component Guide] KFServing #82 for the knative overlay change