Fix some small documentation issues (#75)

- fix #68
- fix dialogic-godot/dialogic/issues/2276
- fix dialogic-godot/dialogic/issues/2646 by mentioning that accessing variables before ready isn't supported

Author: Jowan-Spooner

documentation/creating-extensions.md

@@ -101,6 +101,8 @@ func _init() -> void:
     event_category = "Godot"
 ```
 
+You can change the events icon by putting an `icon.svg` or `icon.png` file next to it's script, or by overwriting the `_get_icon()` method and returning a Texture2D. 
+
 ### 3.4 Saving & Loading (i.e. parsing, representation in timeline's text editor)
 
 We will cover working with shortcodes now. They are pretty much the text view of an event inside the timeline.

documentation/text-modifiers.md

@@ -72,7 +72,7 @@ func _get_text_modifiers() -> Array[Dictionary]:
         {
             "subsystem":"MySubsystem", 
              # alternatively do 
-             #"node_path":"root/MyAutoload",
+             #"node_path":"/root/MyAutoload",
             "method":"my_modifier_method", 
             "mode": -1}, #-1 = Text&Choice, 0 = TextsOnly, 1 = ChoicesOnly
     ]

documentation/variables.md

@@ -9,6 +9,7 @@ You can also access the Dialogic variables from outside scripts.*
 To fully utilize these variables, this page contains all you need to know.
 
 ## 📜 Content
+
 [toc]
 
 ## 1. The Dialogic variable editor
@@ -46,8 +47,8 @@ In the visual editor, you can simply select the variable from the dropdown and c
 In conditions, you can use all the same tricks as in text events and a couple more:
 
 - Accessing autoloads: `Autoload.property`
-
- - In these conditions, Autoloads don't have to be wrapped in `{}` brackets.*
+  
+  - In these conditions, Autoloads don't have to be wrapped in `{}` brackets.*
 
 - Using autoload methods: `Autoload.check_info("Argument", false)`
 
@@ -135,6 +136,10 @@ Dialogic.VAR.set('my_variable', 20)
 print(Dialogic.VAR.get('Group').get('my_variable'))
 ```
 
+```admonish Warning
+Variables are only accessible after the Dialogic autoload is ready, so do not use them before your nodes are ready either!
+```
+
 Folders (as well as the root "folder") have some methods that might be useful:
 
 - `folders()` lists all folders in this folder (not strings but `FolderObjects`)