update changelog

Added information for:

    1. Retry and attempt to fix volume creations that encounter HTTP 422 errors
    2. Added support for Kubernetes 1.20
    3. Update sidecar versions.
    4. Fix for Operator’s OwnerReferences

Point trident to 20.10 Trident-ASUP image

Updating the docs for 20.07.1

Fix Operator namespace permissions and enables autosupport to use ima…

…geRegistry option

This PR fixes the permissions operator requires for namespace which it also grants to Trident. In addition, it also enables Autosupport container to import the image from the supplied image-registry option when installed via the Operator.

Documentation updates for 20.04

Update NOTICE.txt

Update NOTICE.txt

Update NOTICE.txt

Updates for 20.01 release

Fix deployment scripts - part 2