diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..67b419b
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,10 @@
+CloudFlate integration
+----------------------
+
+Put this in settings.php:
+
+// Begin CloudFlare integration.
+if (isset($_SERVER['HTTP_CF_CONNECTING_IP'])) {
+  $_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CF_CONNECTING_IP'];
+}
+// End CloudFlare integration.