Update design.md

Author: andyzhangx

docs/design.md

@@ -3,19 +3,19 @@
 
 Goal | Status | Notes
 --- | --- | --- |
-Support Kubernetes release 1.12 or later | In Progress | release prior to 1.12 won't be supported |
+Support Kubernetes release 1.12 or later | Completed | release prior to 1.12 won't be supported |
 Support service principal and msi authentication | Completed |  |
 Support both Linux & Windows | In Progress | Windows related work is in progress: [Enable CSI hostpath example on windows](https://github.com/kubernetes-csi/drivers/issues/79) |
 Compatible with original storage class parameters and usage| Completed | there is a little difference in static provision, see [example](../deploy/example/pv-blobfuse-csi.yaml) |
-Support sovereign cloud| done | verification pass on Azure China |
+Support sovereign cloud| Completed | verification pass on Azure China |
 
 ### Work items
 Item | Status | Notes
 --- | --- | --- |
 Support volume size grow | to-do |  |
 Support snapshot | to-do |  |
-Enable CI on Windows | done |  |
-Complete all unit tests | In Progress |  |
+Enable CI on Windows | Completed |  |
+Complete all unit tests | Completed |  |
 Set up E2E test | to-do |  |
 Implement NodeStage/NodeUnstage functions | to-do | two pods on same node could share same mount |
 Implement azure blobfuse.csi driver on Windows | to-do |  |