Add documentation for upgrading DirectPV via krew

README.md

@@ -54,10 +54,27 @@ $ kubectl apply -f functests/minio.yaml
 
 For air-gapped setups and advanced installations, please refer to the [Installation Guide](./docs/installation.md).
 
-### Upgrade from DirectPV v3.2.x
+### Upgrade
 
 Firstly, it is required to uninstall older version of DirectPV. Once it is uninstalled, follow [Installation instructions](#Installation) to install the latest DirectPV. In this process, all existing drives and volumes will be migrated automatically.
 
+#### Upgrade using krew
+
+Refer the following steps for upgrading DirectPV using krew
+
+```sh
+# Uninstall existing DirectPV installation
+$ kubectl directpv uninstall
+
+# Upgrade directpv plugin via krew
+$ kubectl krew upgrade directpv
+
+# Install latest DirectPV
+$ kubectl directpv install
+```
+
+#### Upgrade from DirectPV v3.2.x
+
 For migrating from older versions < v3.2.0, Please refer the [Upgrade Guide](./docs/upgrade.md)
 
 ### Security

docs/upgrade.md

@@ -9,10 +9,6 @@ Version Upgrade
 
 DirectPV version upgrades are seameless and transparent. The resources will be upgraded automatically when you run the latest version over the existing resources. The latest version of DirectPV should be available in [krew](https://github.com/kubernetes-sigs/krew-index). For more details on the installation, Please refer the [Installation guidelines](./installation.md).
 
-The following recording demonstrates the version upgrade path.
-
-[![asciicast](https://asciinema.org/a/2Stv8ugsQg72rWOEWlLUVNWrV.svg)](https://asciinema.org/a/2Stv8ugsQg72rWOEWlLUVNWrV)
-
 NOTE: For the users who don't prefer krew, Please find the latest images in [releases](https://github.com/minio/directpv/releases).