diff --git a/docker/README.md b/docker/README.md
index 8ace789..7ad0949 100755
--- a/docker/README.md
+++ b/docker/README.md
@@ -12,3 +12,12 @@ Run the script `prepare.sh` from this folder.
 To launch the application in development mode, run `../launch-devel.sh`.
 
 To launch the application in production mode, run `../launch-prod.sh`.
+
+
+Note on DigitalOcean deployment
+===============================
+
+The DigitalOcean 512MB RAM option is not able to fully support dubdiff. In order to run dubdiff on this size of "droplet" one must enable a swapfile as described in this article:
+  (https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-12-04)
+
+1024K of swap works well.