diff --git a/README.md b/README.md
index e5e7a59..95c57e1 100644
--- a/README.md
+++ b/README.md
@@ -58,8 +58,8 @@ The XPPL is made up of a few parts:
   * The [Flask] application and it's dependencies.
   * The [RQLite] database.
   * The [Syncthing] integration for uploads.
-  * The Nginx reverse proxy.
-  * The Let's Encrypt web certificates.
+  * The [Nginx reverse proxy].
+  * The [Let's Encrypt web certificates].
 
 If you know [Ansible] (it's just YAML), you can just [read the entire configuration].
 
@@ -87,6 +87,8 @@ No backups are configured right now.
 [Flask]: http://flask.pocoo.org/
 [RQLite]: https://github.com/rqlite/rqlite
 [Syncthing]: https://docs.syncthing.net/
+[Nginx reverse proxy]: https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/
+[Let's Encrypt web certificates]: https://certbot.eff.org/
 [Syncthing UI]: https://vvvvvvaria.org/st/
 [read the entire configuration]: ansible/plays/main.yml
 [Ansible]: https://www.ansible.com/overview/how-ansible-works