improve README, also find a few more bugs while making screenshots...

README.md

@@ -1,3 +1,32 @@
 # Magisterium
 
-A magic mod about finding spell pages, binding them in a spell tome, then reading it!
+Construct your own spell book from the magical pages scattered around the world! 
+
+It's made as an entry to Modfest 1.21, although not particularly on theme, which is "Time, Technology & Throwbacks". It may not look like one to you, bit it *is* a throwback - a throwback to Modfest 1.17, when I had the idea for book centered magic mod, yet had abandoned it.
+
+I didn't see how it all could fit together to make a fun experience, but now (= three years later), halfway through the current modfest, the idea finished cooking in my head, and I felt like working on it. So, let's cast some spells!
+
+## Overview
+
+The mod is centered on using spell books, which double as a container for the spell pages and as an actual book you can read and use to cast the spells within. 
+
+**Spell Pages** are found in the world, currently as loot in dungeons, desert and jungle temples and strongholds.
+
+![Spell Page in a desert temple chest](docs/img/spell page loot.png)
+
+They can be inserted into a spell book in the **Arcane Table**, alongside some utilities like **Bookmarks**.
+
+![Arcane table GUI](docs/img/arcane table gui 2.png)
+
+Then, use the spell book to read about the spell, fill ingredients and comply with the requirements, if any, and hold the chant button!
+
+![Spell Page in a desert temple chest](docs/img/illusory wall reading.png)
+
+A number of spells require **Arcane Glyphs** to be placed on the ground, which will define the area of effect of the spell. 
+Simply right click with Lapis Lazuli on the ground to place them.
+
+![Spell Page in a desert temple chest](docs/img/glyphs placement.png)
+
+Woila! You've cast a spell!
+
+![Spell Page in a desert temple chest](docs/img/illusory wall result.png)

src/main/java/io/github/reoseah/magisterium/MagisteriumGameRules.java

@@ -8,7 +8,7 @@ public class MagisteriumGameRules {
     public static final GameRules.Key<GameRules.BooleanRule> ENABLE_MAGISTERIUM_PLAYGROUNDS = GameRuleRegistry.register( //
             "enableMagisteriumPlaygrounds", //
             GameRules.Category.MISC, //
-            GameRuleFactory.createBooleanRule(true) //
+            GameRuleFactory.createBooleanRule(false) //
     );
 
     public static void initialize() {

src/main/resources/data/magisterium/recipe/arcane_table.json

@@ -0,0 +1,24 @@
+{
+  "type": "minecraft:crafting_shaped",
+  "category": "misc",
+  "key": {
+    "G": {
+      "item": "minecraft:gold_ingot"
+    },
+    "L": {
+      "item": "minecraft:lapis_lazuli"
+    },
+    "P": {
+      "tag": "minecraft:planks"
+    }
+  },
+  "pattern": [
+    "LGL",
+    "PPP"
+  ],
+  "result": {
+    "count": 1,
+    "id": "magisterium:arcane_table"
+  },
+  "show_notification": false
+}

src/main/resources/data/magisterium/tags/item/spell_pages.json

@@ -5,6 +5,7 @@
     "magisterium:glyphic_ignition_page",
     "magisterium:conflagrate_page",
     "magisterium:illusory_wall_page",
-    "magisterium:unstable_charge_page"
+    "magisterium:unstable_charge_page",
+    "magisterium:cold_snap_page"
   ]
 }