* make update_ref_docs against release_1.5
* Put back the file deleted by the script: istio.operator.v1alpha1/index.html
* Remove extraneous file (missing cherry pick from master)
* update operator ref doc
* fix broken link
* Update url to archive link
Co-Authored-By: Frank Budinsky <frankb@ca.ibm.com>
Co-authored-by: Frank Budinsky <frankb@ca.ibm.com>