add booster ring, update images

src/pages/astral/adventuring.md

@@ -45,27 +45,6 @@ Roll 1d6, ignoring results of 4+ for the first 2 checks.
 -   In the deep astral, check once every other day (once every 6 phases, roll 1d6 to determine which phase).
 -   Near a [port](#portals) or [outpost](#outposts) (within 1-2 days travel), check once per day, or even once per phase (for busy outposts).
 
-### Calendar
-
-!!!include(today.md)!!!
-
--   Each day on the astral plane is broken up into 3 phases of 24 astral-hours (to keep the astral calendars in sync with the material planes).
-    -   Additionally, each phase while traveling on an astral vessel is broken up into 3 shifts.
--   There are 3 shifts in a phase, 3 phases in a day, 6 days in a week, 5 weeks in a month, 3 months in a season, and 4 seasons in a year.
--   Each day is named after one of the elements:
-    -   Urtday (Earth)
-    -   Aerday (Air)
-    -   Fyday (Fire)
-    -   Warday (water)
-    -   Kayday (Chaos)
-    -   Lawday (Law)
--   Each month is named after an alignment (Law / Kay / Nu)
--   Each season is named after a natural element:
-    -   Urtson (Earth)
-    -   Aerson (Air)
-    -   Fyson (Fire)
-    -   Warson (Water)
-
 ### Currents
 
 Invisible flows of psychic energy that permeate and swirl around the astral plane.