Manual.rst: small update for stail, shead

extension/Documentation/Manual.rst

@@ -640,8 +640,10 @@ QFQ Keywords (Bodytext)
  | <level>.fend      | End token for every field (=column)                                             |
  +-------------------+---------------------------------------------------------------------------------+
  | <level>.shead     | Static start token for whole <level>, independent if records are selected       |
+ |                   | Shown before `head`.                                                            |
  +-------------------+---------------------------------------------------------------------------------+
  | <level>.stail     | Static end token for whole <level>, independent if records are selected.        |
+ |                   | Shown after `tail`.                                                             |
  +-------------------+---------------------------------------------------------------------------------+
  | <level>.head      | Dynamic start token for whole <level>. Only if at least one record is select.   |
  +-------------------+---------------------------------------------------------------------------------+
@@ -664,6 +666,7 @@ QFQ Keywords (Bodytext)
  | <level>.althead   | If <level>.sql is empty, these token will be rendered.                          |
  +-------------------+---------------------------------------------------------------------------------+
  | <level>.altsql    | If <level>.sql is empty, these query will be fired. No sub queries.             |
+ |                   | Shown after `althead`                                                           |
  +-------------------+---------------------------------------------------------------------------------+
  | debugShowBodyText | If='1' and config.qfq.ini:*SHOW_DEBUG_INFO = yes*, shows a tooltip with bodytext|
  +-------------------+---------------------------------------------------------------------------------+