Use "type" and "default" when exporting value in sample code

Author: gilzoide

README.md

@@ -150,7 +150,8 @@ local LuaBouncingLogo = {
 	-- Declare properties
 	linear_velocity = export(100),
 	initial_angle = export({
-		0,
+		type = float,
+		default = 0,
 		hint = PROPERTY_HINT_RANGE,
 		hint_string = "0,360,degrees"
 	}),

test/bouncing_logo.lua

@@ -13,7 +13,8 @@ local LuaBouncingLogo = {
 	-- Declare properties
 	linear_velocity = export(100),
 	initial_angle = export({
-		0,
+		type = float,
+		default = 0,
 		hint = PROPERTY_HINT_RANGE,
 		hint_string = "0,360,degrees"
 	}),

test/bouncing_logo.tscn

@@ -9,4 +9,4 @@
 scale = Vector2(0.6, 0.6)
 texture = ExtResource("1_i8ufr")
 script = ExtResource("2_7vm7x")
-initial_angle = 40
+initial_angle = 40.0