diff --git a/README.md b/README.md
index 4fc0d55..6ae756f 100644
--- a/README.md
+++ b/README.md
@@ -12,4 +12,9 @@ GET parameters:
  * sid: SID to authenticate with
  * room: room to load
  * startId: ID before the first ID to list (optional, default: start with first post)
- * maxPosts: maximum amount of posts to load
\ No newline at end of file
+ * maxPosts: maximum amount of posts to load
+
+ # `fetchDescription`
+GET parameters:
+ * url: URL to the commsy post
+ * sid: SID to authenticate with
\ No newline at end of file