Improved docs, fixed identation

advent.adoc

@@ -39,6 +39,8 @@ There have been no gameplay changes.
 
 -s:: Suppress Emacs-like line editing and command history.
 
+-r:: Restore game from specified file
+
 -o:: Old-style.  Restores original interface, no prompt or line editing.
 
 == BUGS ==

notes.adoc

@@ -73,8 +73,8 @@ necessarily pretty ugly by modern standards. Encryption and
 checksumming have been discarded - it's pointless to try
 tamper-proofing saves when everyone has the source code.
 
-A -r command-line option has been added. It is functionally equivalent 
-to RESTORE command, but faster.
+A -r command-line been added. When it is given (with a file
+path argument) it is functionally equivalent to RESTORE command.
 
 == Translation ==