feat(ci): chart release workflow

Signed-off-by: Thuan Vo <thvo@redhat.com>

.github/workflows/helm-release.yml

@@ -0,0 +1,28 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - main
+      - v[0-9]+
+      - v[0-9]+.[0-9]+
+      - cryostat-v[0-9]+.[0-9]+
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1.5.0
+        with:
+          charts_dir: charts/
+        env:
+          CR_TOKEN: ${{ secrets.GITHUB_TOKEN }}

charts/cryostat/README.md

@@ -1,6 +1,33 @@
 # Cryostat Helm Chart
 A Helm chart for deploying [Cryostat](https://cryostat.io/) on Kubernetes and OpenShift
 
+## Usage
+
+[Helm](https://helm.sh) must be installed to use the charts.  Please refer to
+Helm's [documentation](https://helm.sh/docs) to get started.
+
+Once Helm has been set up correctly, add the repo as follows:
+
+```bash
+helm repo add cryostat https://cryostat.io/helm-charts
+```
+
+If you had already added this repo earlier, run `helm repo update` to retrieve
+the latest versions of the packages.  You can then run `helm search repo
+cryostat` to see the charts.
+
+To install the `cryostat` chart:
+
+```bash
+helm install cryostat-sample cryostat/cryostat
+```
+
+To uninstall the chart:
+
+```bash
+helm uninstall cryostat-sample
+```
+
 ## Parameters
 
 ### Cryostat Container