diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..78706c0
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,16 @@
+DESCRIPTION
+===========
+Provides a field type that can reference arbitrary entities.
+
+SITE BUILDERS
+=============
+Note that when using a select widget, Entity reference loads all the
+entities in that list in order to get the entity's label. If there are
+too many loaded entities that site might reach its memory limit and crash
+(also known as WSOD). In such a case you are advised to change the widget
+to "autocomplete". If you get a WSOD when trying to edit the field
+settings, you can reach the widget settings directly by navigation to
+
+  admin/structure/types/manage/[ENTITY-TYPE]/fields/[FIELD-NAME]/widget-type
+
+Replace ENTITY-TYPE and FIELD_NAME with the correct values.
