Use on front page "Learn more" link

src/pages/_index.mdx

@@ -1,6 +1,6 @@
 import clsx from "clsx";
 import styles from "./index.module.css";
-import Link from "@docusaurus/Link";
+import VersionedDocsLink from "@site/src/components/VersionedDocsLink";
 
 export const Card = ({ children }) => {
   return (
@@ -116,7 +116,13 @@ You'll find no subsets like Starlark here. Pants empowers you with full support
 
 Pants supports Python, Docker, Go, Java, Kotlin, Pex, Protodoc, Scala, Shell, Thrift, Protobuf,
 Docker, Helm, many linting and formatting tools, packaging, coverage, and more.
-[Learn more.](/2.19/docs/introduction/welcome-to-pants)
+
+<VersionedDocsLink
+  version="last-stable"
+  unversionedPath="docs/introduction/welcome-to-pants"
+>
+  Learn more.
+</VersionedDocsLink>
 
 </div>
 </div>