Fix command docs, automate API doc generation (#327)

Co-authored-by: Dennis Ploeger <develop@dieploegers.de>
Co-authored-by: dploeger <dploeger@users.noreply.github.com>

docs/api/ESCSaveGame.md

@@ -0,0 +1,85 @@
+<!-- Auto-generated from JSON by GDScript docs maker. Do not edit this document directly. -->
+
+# ESCSaveGame
+
+**Extends:** [Resource](../Resource)
+
+## Description
+
+Resource used for holding savegames data.
+
+## Constants Descriptions
+
+### MAIN\_CURRENT\_SCENE\_FILENAME\_KEY
+
+```gdscript
+const MAIN_CURRENT_SCENE_FILENAME_KEY: String = "current_scene_filename"
+```
+
+Access key for the main data current_scene_filename
+
+### MAIN\_LAST\_SCENE\_GLOBAL\_ID\_KEY
+
+```gdscript
+const MAIN_LAST_SCENE_GLOBAL_ID_KEY: String = "last_scene_global_id"
+```
+
+Access key for the main data last_scene_global_id
+
+## Property Descriptions
+
+### escoria\_version
+
+```gdscript
+export var escoria_version: String = ""
+```
+
+Escoria version which the savegame was created with.
+
+### game\_version
+
+```gdscript
+export var game_version: String = ""
+```
+
+Game version which the savegame was created with.
+
+### name
+
+```gdscript
+export var name: String = ""
+```
+
+ Name of the savegame. Can be custom value, provided by the player.
+
+### date
+
+```gdscript
+export var date: String = ""
+```
+
+ Date of creation of the savegame.
+
+### main
+
+```gdscript
+export var main: Dictionary = {}
+```
+
+ Main data to be saved
+
+### globals
+
+```gdscript
+export var globals: Dictionary = {}
+```
+
+Escoria Global variables exported from ESCGlobalsManager
+
+### objects
+
+```gdscript
+export var objects: Dictionary = {}
+```
+
+Escoria objects exported from ESCObjectsManager