Markdown support for standalone pages

Co-authored-by: Daniel Bünzli <[email protected]>
Co-authored-by: Paul-Elliot Anglès d'Auriac <[email protected]>

README.md

@@ -1,11 +1,4 @@
-<h1 align="center">
-  <a href="https://ocaml.github.io/odoc/">
-    odoc
-  </a>
-</h1>
-
-<p align="center">
-  <strong>OCaml Documentation Generator.</strong>
+# **[odoc](https://ocaml.github.io/odoc/) : OCaml Documentation Generator**
 </p>
 
 <p align="center">

odoc-md.opam

@@ -0,0 +1,47 @@
+opam-version: "2.0"
+
+version: "dev"
+homepage: "https://github.com/ocaml/odoc"
+doc: "https://ocaml.github.io/odoc/"
+bug-reports: "https://github.com/ocaml/odoc/issues"
+license: "ISC"
+
+maintainer: [
+  "Jon Ludlam <[email protected]>"
+  "Jules Aguillon <[email protected]>"
+  "Paul-Elliot Anglès d'Auriac <[email protected]>"
+]
+authors: [
+  "Daniel Bünzli <[email protected]>"
+  "Paul-Elliot Anglès d'Auriac <[email protected]>"
+  "Jon Ludlam <[email protected]>"
+]
+dev-repo: "git+https://github.com/ocaml/odoc.git"
+
+synopsis: "OCaml Documentation Generator - Markdown support"
+description: """
+Odoc-md is part of the odoc suite of tools for generating documentation for OCaml packages.
+
+This package provides support for generating documentation from Markdown files.
+"""
+
+depends: [
+  "ocaml" {>= "4.14.0"}
+  "odoc" {= version}
+  "cmarkit"
+]
+
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]