docs: create documentation for v0.21 release

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>

.github/workflows/publish.yml

@@ -6,6 +6,7 @@ on:
         - main
         - release-0.19
         - release-0.20
+        - release-0.21
 
 jobs:
   build:
@@ -60,6 +61,17 @@ jobs:
         rm -rf _work/venv
         make vhtml
         mv _build/html $HOME/output/0.20
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+        ref: release-0.21
+    - name: Build release-0.21
+      run: |
+        GITHUB_SHA=$(git rev-parse HEAD)
+        export GITHUB_SHA
+        rm -rf _work/venv
+        make vhtml
+        mv _build/html $HOME/output/0.21
     - name: Deploy the docs
       shell: bash
       env:

README.md

@@ -7,8 +7,8 @@ This repository contains a framework for developing plugins for the Kubernetes
 [device plugins framework](https://kubernetes.io/docs/concepts/extend-kubernetes/compute-storage-net/device-plugins/),
 along with a number of device plugin implementations utilising that framework.
 
-The [v0.20 release](https://github.com/intel/intel-device-plugins-for-kubernetes/releases/latest)
-is the latest feature release with its documentation available [here](https://intel.github.io/intel-device-plugins-for-kubernetes/0.20/).
+The [v0.21 release](https://github.com/intel/intel-device-plugins-for-kubernetes/releases/latest)
+is the latest feature release with its documentation available [here](https://intel.github.io/intel-device-plugins-for-kubernetes/0.21/).
 
 Table of Contents
 
@@ -253,6 +253,7 @@ matching Kubernetes versions are listed below:
 
 | Branch            | Kubernetes branch/version      | Status      |
 |:------------------|:-------------------------------|:------------|
+| release-0.21      | Kubernetes 1.21 branch v1.21.x | supported   |
 | release-0.20      | Kubernetes 1.20 branch v1.20.x | supported   |
 | release-0.19      | Kubernetes 1.19 branch v1.19.x | supported   |
 | release-0.18      | Kubernetes 1.18 branch v1.18.x | unsupported |