Proofread and improve the whole class reference

- Document a few more properties and methods
- Add more information to many classes
- Fix lots of typos and gramar mistakes
- Use [code] tags for parameters consistently
- Use [b] and [i] tags consistently
- Put "Warning:" and "Note:" on their own line to be more visible,
  and make them always bold
- Tweak formatting in code examples to be more readable
- Use double quotes consistently
- Add more links to third-party technologies

1 files changed, 12 insertions, 9 deletions

diff --git a/doc/classes/PackedScene.xml b/doc/classes/PackedScene.xml
index 7827571178..a5989f8494 100644
--- a/doc/classes/PackedScene.xml
+++ b/doc/classes/PackedScene.xml
@@ -5,26 +5,27 @@
 	</brief_description>
 	<description>
 		A simplified interface to a scene file. Provides access to operations and checks that can be performed on the scene resource itself.
-		Can be used to save a node to a file. When saving, the node as well as all the node it owns get saved (see [code]owner[/code] property on [Node]). Note that the node doesn't need to own itself.
-		Example of saving a node with different owners: The following example creates 3 objects: [code]Node2D[/code] ([code]node[/code]), [code]RigidBody2D[/code] ([code]rigid[/code]) and [code]CollisionObject2D[/code] ([code]collision[/code]). [code]collision[/code] is a child of [code]rigid[/code] which is a child of [code]node[/code]. Only [code]rigid[/code] is owned by [code]node[/code] and [code]pack[/code] will therefore only save those two nodes, but not [code]collision[/code].
+		Can be used to save a node to a file. When saving, the node as well as all the node it owns get saved (see [code]owner[/code] property on [Node]).
+		[b]Note:[/b] The node doesn't need to own itself.
+		[b]Example of saving a node with different owners:[/b] The following example creates 3 objects: [code]Node2D[/code] ([code]node[/code]), [code]RigidBody2D[/code] ([code]rigid[/code]) and [code]CollisionObject2D[/code] ([code]collision[/code]). [code]collision[/code] is a child of [code]rigid[/code] which is a child of [code]node[/code]. Only [code]rigid[/code] is owned by [code]node[/code] and [code]pack[/code] will therefore only save those two nodes, but not [code]collision[/code].
 		[codeblock]
-		# create the objects
+		# Create the objects
 		var node = Node2D.new()
 		var rigid = RigidBody2D.new()
 		var collision = CollisionShape2D.new()
 
-		# create the object hierarchy
+		# Create the object hierarchy
 		rigid.add_child(collision)
 		node.add_child(rigid)
 
-		# change owner of rigid, but not of collision
+		# Change owner of rigid, but not of collision
 		rigid.owner = node
 
 		var scene = PackedScene.new()
-		# only node and rigid are now packed
+		# Only node and rigid are now packed
 		var result = scene.pack(node)
 		if result == OK:
-		    ResourceSaver.save("res://path/name.scn", scene) # or user://...
+		    ResourceSaver.save("res://path/name.scn", scene) # Or "user://..."
 		[/codeblock]
 	</description>
 	<tutorials>
@@ -74,10 +75,12 @@
 			If passed to [method instance], blocks edits to the scene state.
 		</constant>
 		<constant name="GEN_EDIT_STATE_INSTANCE" value="1" enum="GenEditState">
-			If passed to [method instance], provides local scene resources to the local scene. Requires tools compiled.
+			If passed to [method instance], provides local scene resources to the local scene.
+			[b]Note:[/b] Only available in editor builds.
 		</constant>
 		<constant name="GEN_EDIT_STATE_MAIN" value="2" enum="GenEditState">
-			If passed to [method instance], provides local scene resources to the local scene. Only the main scene should receive the main edit state. Requires tools compiled.
+			If passed to [method instance], provides local scene resources to the local scene. Only the main scene should receive the main edit state.
+			[b]Note:[/b] Only available in editor builds.
 		</constant>
 	</constants>
 </class>