diff --git a/supporting-docs/projects/README.md b/supporting-docs/projects/README.md
index d0f58f828..5e3738531 100644
--- a/supporting-docs/projects/README.md
+++ b/supporting-docs/projects/README.md
@@ -1,2 +1,4 @@
 # Matrix Projects
 Feel free to send us a PR to add or update an entry. You can also add a screen shot and just refer to the git-hub URL of that image in the entry.
+
+Jekyll requires a date in the filename; we use the date to sort the various project lists (newest projects first). It might be best to submit new entries with a date like 2015-01-01.