Started expanding docs about tutorial game

docs/source/Coding/Changelog.md

@@ -160,14 +160,20 @@ Up requirements to Django 4.0+, Twisted 22+, Python 3.9 or 3.10
 - Attribute storage support defaultdics (Hendher)
 - Add ObjectParent mixin to default game folder template as an easy, ready-made
   way to override features on all ObjectDB-inheriting objects easily.
+  source location, mimicking behavior of `at_pre_move` hook - returning False will abort move.
 - Add `TagProperty`, `AliasProperty` and `PermissionProperty` to assign these
   data in a similar way to django fields.
+- New `at_pre_object_receive(obj, source_location)` method on Objects. Called on
+  destination, mimicking behavior of `at_pre_move` hook - returning False will abort move.
+- New `at_pre_object_leave(obj, destination)` method on Objects. Called on
 - The db pickle-serializer now checks for methods `__serialize_dbobjs__` and `__deserialize_dbobjs__`
   to allow custom packing/unpacking of nested dbobjs, to allow storing in Attribute.
 - Optimizations to rpsystem contrib performance. Breaking change: `.get_sdesc()` will
   now return `None` instead of `.db.desc` if no sdesc is set; fallback in hook (inspectorCaracal)
 - Reworked text2html parser to avoid problems with stateful color tags (inspectorCaracal)
 - Simplified `EvMenu.options_formatter` hook to use `EvColumn` and f-strings (inspectorcaracal)
+- Allow `# CODE`, `# HEADER` etc as well as `#CODE`/`#HEADER` in batchcode
+  files - this works better with black linting.
 
 
 ## Evennia 0.9.5