diff --git a/SCHEMA.md b/docs/SCHEMA.md
similarity index 99%
rename from SCHEMA.md
rename to docs/SCHEMA.md
index e2a92940..5f962b44 100644
--- a/SCHEMA.md
+++ b/docs/SCHEMA.md
@@ -86,6 +86,7 @@
 * assignmentProblemId: foreign_key
 * score: ?
 * feedback: ?
+* released: ?
 
 
 ### SubmissionScore