diff --git a/aquatic_http_private/README.md b/aquatic_http_private/README.md
index 904897e..25a53c3 100644
--- a/aquatic_http_private/README.md
+++ b/aquatic_http_private/README.md
@@ -1,4 +1,6 @@
-# aquatic_private
+# aquatic_http_private
+
+Work in progress.
 
 ## Setup
 
@@ -17,7 +19,7 @@ Create stored procedure (`OR REPLACE` keeps privileges in place and is supported
 CREATE OR REPLACE PROCEDURE aquatic_announce_v1 (
     IN p_source_ip VARBINARY(16),
     IN p_source_port SMALLINT UNSIGNED,
-    IN p_user_agent TEXT,
+    IN p_user_agent TEXT, -- Can be NULL
     IN p_user_token VARCHAR(255),
     IN p_info_hash CHAR(40),
     IN p_peer_id CHAR(40),
@@ -25,9 +27,9 @@ CREATE OR REPLACE PROCEDURE aquatic_announce_v1 (
     IN p_uploaded BIGINT UNSIGNED,
     IN p_downloaded BIGINT UNSIGNED,
     IN p_left BIGINT UNSIGNED,
-    OUT p_announce_allowed BOOLEAN,
-    OUT p_failure_reason TEXT,
-    OUT p_warning_message TEXT
+    OUT p_announce_allowed BOOLEAN, -- false if not set
+    OUT p_failure_reason TEXT, -- NULL if not set
+    OUT p_warning_message TEXT -- NULL if not set
 )
 MODIFIES SQL DATA
 BEGIN
@@ -44,7 +46,5 @@ DATABASE_URL="mysql://aquatic:aquatic@localhost/aquatic"
 Run application:
 
 ```sh
-cargo run -p aquatic_http_private
-```
-
-Test by visiting `localhost:3000/announce/abcd/?info_hash=abcdeabcdeabcdeabcde&peer_id=abcdeabcdeabcdeabcde&port=1000&left=0`
\ No newline at end of file
+cargo run --release -p aquatic_http_private
+```
\ No newline at end of file