Add DockerHub repo link to downloads page

src/pages/download.mdx

@@ -37,6 +37,13 @@ import SupportedVersionsTable from "@site/src/components/SupportedVersionsTable"
 - [All Versions Schedule](pathname:///contribute/release-policy)
 - [Release notes](pathname:///release-notes)
 
+## Docker Image
+
+The recommended way to run Pulsar is to use it as a Docker container.
+
+- [DockerHub Repository](https://hub.docker.com/r/apachepulsar/pulsar)
+- [Run a standalone Pulsar cluster in Docker 📘](https://pulsar.apache.org/docs/next/getting-started-docker/)
+
 ## Current version <CurrentPulsarVersion/>
 
 You can download all previous versions of Pulsar at [the archive page](https://archive.apache.org/dist/pulsar/).