doc: switch to v0.6.0 for master branch

Author: andyzhangx

Makefile

@@ -16,7 +16,7 @@ PKG = sigs.k8s.io/blobfuse-csi-driver
 GIT_COMMIT ?= $(shell git rev-parse HEAD)
 REGISTRY ?= andyzhangx
 IMAGE_NAME = blobfuse-csi
-IMAGE_VERSION ?= v0.5.0
+IMAGE_VERSION ?= v0.6.0
 # Use a custom version for E2E tests if we are in Prow
 ifdef AZURE_CREDENTIALS
 override IMAGE_VERSION := e2e-$(GIT_COMMIT)