Merge pull request #6567 from xing-yang/update_storage_contrib

Update contributing guide

Author: k8s-ci-robot

sig-storage/CONTRIBUTING.md

@@ -9,10 +9,11 @@ We recommend the following presentations, docs, and videos to help get familiar
 | 2020 November 18 | Beyond File and Block Storage in Kubernetes | [Video](https://www.youtube.com/watch?v=Y3GgJb71Cwo) | An introduction of Container Object Storage Interface (COSI) by Sidhartha Mani at KubeCon/CloudNativeCon NA 2020. |
 | 2020 December 10 | Kubernetes 1.20: Kubernetes Volume Snapshot Moves to GA |[Blog post](https://kubernetes.io/blog/2020/12/10/kubernetes-1.20-volume-snapshot-moves-to-ga/)| Overview of Volume Snapshots in Kubernetes at GA. |
 | - | Persistent Volume Framework | [Doc](http://kubernetes.io/docs/user-guide/persistent-volumes/) | Public user docs for Kubernetes Persistent Volume framework.
+| 2019 May 23 | **Kubernetes Storage 101** | [Video](https://www.youtube.com/watch?v=_qfSzrPn9Cs) | An overview of usage of persistent storage in Kubernetes by David Zhu and Jan Šafránek at KubeCon/CloudNativeCon EU 2019.|
 | 2018 May 03 | SIG Storage Intro | [Video](https://www.youtube.com/watch?v=GvrTl2T-Tts&list=PLj6h78yzYM2N8GdbjmhVU65KYm_68qBmo&index=164&t=0s) | An overview of SIG Storage By Saad Ali at KubeCon/CloudNativeCon EU 2018. |
-| 2018 May 04 | Kubernetes Storage Lingo 101 | [Video](https://www.youtube.com/watch?v=uSxlgK1bCuA&t=0s&index=300&list=PLj6h78yzYM2N8GdbjmhVU65KYm_68qBmo) | An overview of various terms used in Kubernetes storage and what they mean by Saad Ali at KubeCon/CloudNativeCon EU 2018.|
-| 2017 May 18 | Storage Classes & Dynamic Provisioning in Kubernetes |[Video](https://youtu.be/qktFhjJmFhg)| Intro to the basic Kubernetes storage concepts for users (direct volume reference, PV/PVC, and dynamic provisioning). |
-| 2017 March 29 | Dynamic Provisioning and Storage Classes in Kubernetes |[Blog post](https://kubernetes.io/blog/2017/03/dynamic-provisioning-and-storage-classes-kubernetes/)| Overview of Dynamic Provisioning and Storage Classes in Kubernetes at GA. |
+| 2018 May 04 | **Kubernetes Storage Lingo 101** | [Video](https://www.youtube.com/watch?v=uSxlgK1bCuA&t=0s&index=300&list=PLj6h78yzYM2N8GdbjmhVU65KYm_68qBmo) | An overview of various terms used in Kubernetes storage and what they mean by Saad Ali at KubeCon/CloudNativeCon EU 2018.|
+| 2017 May 18 | **Storage Classes & Dynamic Provisioning in Kubernetes** |[Video](https://youtu.be/qktFhjJmFhg)| Intro to the basic Kubernetes storage concepts for users (direct volume reference, PV/PVC, and dynamic provisioning). |
+| 2017 March 29 | **Dynamic Provisioning and Storage Classes in Kubernetes** |[Blog post](https://kubernetes.io/blog/2017/03/dynamic-provisioning-and-storage-classes-kubernetes/)| Overview of Dynamic Provisioning and Storage Classes in Kubernetes at GA. |
 | 2017 March 29 | How Kubernetes Storage Works | [Slides](https://docs.google.com/presentation/d/1Yl5JKifcncn0gSZf3e1dWspd8iFaWObLm9LxCaXZJIk/edit?usp=sharing) | Overview for developers on how Kubernetes storage works for KubeCon/CloudNativeCon EU 2017 by Saad Ali
 | 2017 February 17 | Overview of Dynamic Provisioning for SIG Apps | [Video](https://youtu.be/NXUHmxXytUQ?t=10m33s) | Overview of Storage Classes and Dynamic Provisioning for SIG Apps
 | 2016 October 7 | Dynamic Provisioning and Storage Classes in Kubernetes |[Blog post](https://kubernetes.io/blog/2016/10/dynamic-provisioning-and-storage-in-kubernetes/)| Overview of Dynamic Provisioning and Storage Classes in Kubernetes at Beta. |
@@ -40,6 +41,6 @@ and documentation in your implementation PR.
 A great way to get involved is to pick an issue and help address it. We would love help here. Storage related issues are [listed here](https://github.com/kubernetes/kubernetes/issues?utf8=%E2%9C%93&q=is%3Aopen+is%3Aissue+label%3Asig%2Fstorage+).
 
 ### Adding support for a new storage platform in Kubernetes
-For folks looking to add support for a new storage platform in Kubernetes, take a look of the [CSI Drivers Doc](https://kubernetes-csi.github.io/docs/). The CSI Drivers Doc website documents how to develop, deploy, and test a [Container Storage Interface](https://github.com/container-storage-interface/spec/blob/master/spec.md) (CSI) driver on Kubernetes.
+For folks looking to add support for a new storage platform in Kubernetes, take a look of the [CSI Drivers Doc](https://kubernetes-csi.github.io/docs/). The CSI Drivers Doc website documents how to develop, deploy, and test a [Container Storage Interface](https://github.com/container-storage-interface/spec/blob/master/spec.md) (CSI) driver on Kubernetes. [CSI Hostpath Driver](https://github.com/kubernetes-csi/csi-driver-host-path/blob/master/README.md) is a demo implementation and is used for CSI testing.
 
 Also see [here](https://github.com/kubernetes/community/blob/master/sig-storage/volume-plugin-faq.md) for deprecation notices regarding in-tree volume plugin and out-of-tree FlexVolume driver.