Update Readme

README.md

@@ -6,5 +6,46 @@
 [![CodeQL](https://github.com/dbsnapper/install-dbsnapper-agent-action/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/dbsnapper/install-dbsnapper-agent-action/actions/workflows/codeql-analysis.yml)
 [![Coverage](./badges/coverage.svg)](./badges/coverage.svg)
 
-This action installs the [DBSnapper](https://dbsnapper.com) agent on a runner as
+## Overview
+
+This action installs the [DBSnapper](https://dbsnapper.com) Agent on a runner as
 part of a GitHub Actions workflow.
+
+## Usage
+
+The action takes an optional `version` input that specifies the version of the
+Agent to install. If no version is specified, the latest version is installed.
+
+```yaml
+steps:
+  - name: Install DBSnapper Agent
+    uses: dbsnapper/install-dbsnapper-agent-action@v1
+    with:
+      version: latest
+```
+
+## Sample DBSnapper job
+
+Building on the above example, you can use a job similar to the following to run
+a DBSnapper command such as this one that lists available targets:
+
+```yaml
+dbsnapper:
+  runs-on: ubuntu-latest
+  env:
+    # Provide the minimum required DBSnapper environment variables
+    # to run the DBSnapper agent in Cloud mode,
+    # without a configuration file
+    DBSNAPPER_SECRET_KEY: ${{ secrets.DBSNAPPER_SECRET_KEY }}
+    DBSNAPPER_AUTHTOKEN: ${{ secrets.DBSNAPPER_AUTHTOKEN }}
+  steps:
+    - name: Install DBSnapper Agent
+      uses: dbsnapper/install-dbsnapper-agent-action@v1
+      with:
+        version: latest
+    - name: Run DBSnapper List Targets
+      run: dbsnapper targets
+```
+
+More information on the DBSnapper Agent and its usage can be found in the
+[DBSnapper documentation](https://docs.dbsnapper.com).