Update 06.md

Co-authored-by: Pavol Rusnak <pavol@rusnak.io>

06.md

@@ -97,7 +97,7 @@ With the mint's response being of the form `GetInfoResponse`:
 - (optional) `icon_url` is the URL pointing to an image to be used as an icon for the mint. Recommended to be squared in shape.
 - (optional) `urls` is the list of endpoint URLs where the mint is reachable from.
 - (optional) `time` is the current time set on the server. The value is passed as a Unix timestamp integer.
-- (optional) `tos` is the Terms of Service of the mint.
+- (optional) `tos_url` is the URL pointing to the Terms of Service of the mint.
 - (optional) `nuts` indicates each NUT specification that the mint supports and its settings. The settings are defined in each NUT separately.
 
 With curl: