Update 1.21-notes.md

Armadillo from Cocoon, and Thermalily maybe drinking from cauldrons

doc/1.21-notes.md

@@ -65,6 +65,7 @@
   * Hydroangeas (fluid tag `#botania:hydroangeas_consumable`, including just water by default)
     (also upgrade infinite source detection to query the consumed fluid's actual spreading logic)
   * Thermalily (fluid tag `#botania:thermalily_consumable`, includes only lava by default)
+    (maybe also allow grabbing fluids from cauldrons)
   * Munchdew (block tag `#botania:munchdew_consumable`, includes only vanilla leaves tag by default)
   * Clayconia (block tags `#botania:clayconia_converts_to_clayball` and `#botania:clayconia_converts_to_clay_block`, unless we decide to go the recipe route)
   * Bubbell (switch to fluid tag `#botania:bubbell_displaceable`, maybe even support drying waterlogged blocks)
@@ -77,4 +78,5 @@
   * maybe extend biome bonus weight support from Marimorphosis to all Orechid-like recipes
     * adjust Orechid stone recipes accordingly (more emeralds in mountains, more copper in dripstone caves, etc.)
   * maybe add data-driven Orechid configurations to replace hard-coded GoG changes (mana cost per input item, operation speed)
-    * GoG could eventually become a data pack instead of having all kinds of exceptions hard-coded into Botania
+    * GoG could eventually become a data pack instead of having all kinds of exceptions hard-coded into Botania
+* Armadillo: add it to Cocoon of Caprice as rare spawn, maybe find something to do with its scutes