[Docs] Remove double-spaces from descriptions, as well a couple other small fixes

doc/classes/@GDScript.xml

@@ -373,7 +373,7 @@
 			<description>
 				Returns the floating-point remainder of [code]x/y[/code] that wraps equally in positive and negative.
 				[codeblock]
-				var i = -10;
+				var i = -10
 				while i &lt; 0:
 				    prints(i, fposmod(i, 10))
 				    i += 1

doc/classes/LargeTexture.xml

@@ -74,7 +74,7 @@
 			<argument index="1" name="texture" type="Texture">
 			</argument>
 			<description>
-				Sets the [Texture] of the piece with index "idx" to  "ofs".
+				Sets the [Texture] of the piece with index "idx" to "texture".
 			</description>
 		</method>
 		<method name="set_size">

doc/classes/PackedScene.xml

@@ -11,7 +11,7 @@
 		var scene = PackedScene.new()
 		var result = scene.pack(child)
 		if result == OK:
-		    ResourceSaver.save("res://path/name.scn", scene) // or user://...
+		    ResourceSaver.save("res://path/name.scn", scene) # or user://...
 		[/codeblock]
 	</description>
 	<tutorials>