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/ESCSaveManager.md

@@ -0,0 +1,101 @@
+<!-- Auto-generated from JSON by GDScript docs maker. Do not edit this document directly. -->
+
+# ESCSaveManager
+
+## Constants Descriptions
+
+### SAVE\_NAME\_TEMPLATE
+
+```gdscript
+const SAVE_NAME_TEMPLATE: String = "save_%03d.tres"
+```
+
+Template for savegames filenames
+
+### SETTINGS\_TEMPLATE
+
+```gdscript
+const SETTINGS_TEMPLATE: String = "settings.tres"
+```
+
+Template for settings filename
+
+## Property Descriptions
+
+### save\_folder
+
+```gdscript
+var save_folder: String
+```
+
+Variable containing the saves folder obtained from Project Settings
+
+### settings\_folder
+
+```gdscript
+var settings_folder: String
+```
+
+Variable containing the settings folder obtained from Project Settings
+
+## Method Descriptions
+
+### get\_saves\_list
+
+```gdscript
+func get_saves_list() -> Dictionary
+```
+
+Return a list of savegames metadata (id, date, name and game version)
+
+### save\_game\_exists
+
+```gdscript
+func save_game_exists(id: int) -> bool
+```
+
+Returns true whether the savegame identified by id does exist
+
+## Parameters
+- id: integer suffix of the savegame file
+
+### save\_game
+
+```gdscript
+func save_game(id: int, p_savename: String)
+```
+
+Save the current state of the game in a file suffixed with the id value.
+This id can help with slots development for the game developer.
+
+ ## Parameters
+- id: integer suffix of the savegame file
+- p_savename: name of the savegame
+
+### load\_game
+
+```gdscript
+func load_game(id: int)
+```
+
+Load a savegame file from its id.
+
+ ## Parameters
+- id: integer suffix of the savegame file
+
+### save\_settings
+
+```gdscript
+func save_settings()
+```
+
+Save the game settings in the settings file.
+
+### load\_settings
+
+```gdscript
+func load_settings() -> Resource
+```
+
+Load the game settings from the settings file
+**Returns** The Resource structure loaded from settings file