Add documentation in different folders (#146)

* Fix typo

* Add more documentation in different folders.

Add documentation files in different parts of the plugin to explain what's the purpose of the contained files.

CONTRIBUTING.md

@@ -3,7 +3,7 @@
 > _First off, many, many, many thanks for consider contributing to this plugin! I like to make things, but getting a hand on it is much better.
 > I really appreciate that you are reading this file_
 
-**Abstract:** _Report issues if no one have faced that issue before, else comment the opened issue; request stuff if you find it situable and goes in the same way as this project goal; open pull request for opened issues of to improve/fix stuff that follows the same goal as this project and, please, document what you do, in the code or in the commit._
+**Abstract:** _Report issues if no one have faced that issue before, else comment the opened issue; request stuff if you find it suitable and goes in the same way as this project goal; open pull request for opened issues of to improve/fix stuff that follows the same goal as this project and, please, document what you do, in the code or in the commit._
 
 ---
 

commands/README.md

@@ -0,0 +1,33 @@
+# Command
+Command is a Collection derivation, containing information about what the processor should do when it reach that command.
+
+Each command defines its own behavior and should notify the processor when it ends or what should be the next step that it should take.
+
+To create a custom command, just extend from `Command`, define a name, its behavior and finally register it to `CommandRecord`.
+
+```gdscript
+@tool # <- It MUST be tool or editor will not be able to use it.
+extends Command
+
+func _execution_steps() -> void:
+	## Always notify that your command started. You have total control on
+	## where to emit this signal, but be sure to emit it once.
+	command_started.emit() # Notify that your command started
+	
+	## Implement your command behavior
+	print("Hello")
+	
+	## Never forget to notify that you command have finished in order
+	## to let the command manager know that is safe to continue to
+	## the next event.
+	go_to_next_command()
+
+## Here you define your command name
+func _get_name() -> StringName:
+	return "CUSTOM_COMMAND"
+
+## You can define other properties of the command,
+## Editor will use those to change the command block appeareance.
+func _get_icon() -> Texture:
+	return load("res://icon.svg")
+```

core/README.md

@@ -0,0 +1,4 @@
+# Core 
+Very important files that didn't fit in any other folder. 
+
+These files are usually tied to the plugin than the editor itself, like the main plugin script or util functions used in many editor places.

debugger/README.md

@@ -0,0 +1,4 @@
+# Debugger
+Debugger is the bridge between running game and editor.
+
+Its goal is to provide a visual feedback about the flow of the current processors that are in the current scene of the game.

editor/README.md

@@ -0,0 +1,4 @@
+# Editor
+Blockflow editor.
+
+The editor main purpose is to provide a tool to create and modify collections and commands to be used later in game through processors.