diff --git a/README.md b/README.md
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@@ -4,26 +4,52 @@
 ![CI](https://github.com/actions/typescript-action/actions/workflows/ci.yml/badge.svg)
 [![Check dist/](https://github.com/actions/typescript-action/actions/workflows/check-dist.yml/badge.svg)](https://github.com/actions/typescript-action/actions/workflows/check-dist.yml)
 
-This action allows you to create an annotation in Axiom.
-
-## Usage
-
-1. Create an Axiom API token with permission to create annotations
-1. Create your annotation:
-
-```yaml
-- name: Create annotation
-  uses: axiomhq/annotation-action@v0.1.0
-  with:
-    axiomToken: ${{ secrets.AXIOM_TOKEN }}
-    datasets: production-logs
-    type: "production-release"
-    time: "2024-01-01T00:00:00Z"            # optional, defaults to now
-    endTime: "2024-01-01T01:00:00Z"         # optional, defaults to null
-    title: "Production release"             # optional
-    description: "Commit ${{ github.sha }}" # optional
-    url: "https://axiom.co"                 # optional, defaults to job url
-```
+This GitHub Action lets you create annotations in [Axiom](https://axiom.co/).
+For more information, see the
+[Axiom documentation](https://axiom.co/docs/query-data/annotate-charts).
+
+You can configure GitHub Actions using YAML syntax. For more information, see
+the
+[GitHub documentation](https://docs.github.com/en/actions/learn-github-actions/understanding-github-actions#create-an-example-workflow).
+
+## Prerequisites
+
+- [Create an Axiom account](https://app.axiom.co/).
+- [Create a dataset](https://axiom.co/docs/reference/datasets).
+- [Create an advanced API token in Axiom with permissions to update dashboards](https://axiom.co/docs/reference/tokens).
+- [Send data to your Axiom dataset](https://axiom.co/docs/send-data/ingest).
+
+## Create annotations with GitHub Actions
+
+To create an annotation when a deployment happens in GitHub, follow these steps:
+
+1. Add the following to the end of your GitHub Action file:
+
+   ```yml
+   - name: Add annotation in Axiom when a deployment happens
+     uses: axiomhq/annotation-action@v0.1.0
+     with:
+       axiomToken: ${{ secrets.API_TOKEN }}
+       datasets: DATASET_NAME
+       type: 'production-release'
+       time: '2024-01-01T00:00:00Z' # optional, defaults to now
+       endTime: '2024-01-01T01:00:00Z' # optional, defaults to null
+       title: 'Production deployment' # optional
+       description: 'Commit ${{ github.event.head_commit.message }}' # optional
+       url: 'https://example.com' # optional, defaults to job url
+   ```
+
+1. In the code above, replace the following:
+   - Replace `DATASET_NAME` with the Axiom dataset where you want to send data.
+     To add the annotation to more than one dataset, enter a string of Axiom
+     dataset names separated by commas. For example
+     `datasets: 'DATASET_NAME_1, DATASET_NAME_2, DATASET_NAME_3'`.
+   - Add the Axiom API token to your GitHub secrets, and replace `API_TOKEN`
+     with the name of this secret.
+1. Customize the other fields of the code above such as the title, the
+   description, and the URL.
+
+This creates an annotation in Axiom each time you deploy in GitHub.
 
 This action has the ID of the annotation as an output, read the
 [ci.yaml](https://github.com/axiomhq/annotation-action/blob/main/.github/workflows/ci.yml)