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, 8 insertions, 9 deletions

diff --git a/doc/classes/Sky.xml b/doc/classes/Sky.xml
index a5e065203e..cc9d2dc0df 100644
--- a/doc/classes/Sky.xml
+++ b/doc/classes/Sky.xml
@@ -12,32 +12,31 @@
 	</methods>
 	<members>
 		<member name="radiance_size" type="int" setter="set_radiance_size" getter="get_radiance_size" enum="Sky.RadianceSize">
-			The [Sky]'s radiance map size.
-			The higher the radiance map size, the more detailed the lighting from the [Sky] will be.
+			The [Sky]'s radiance map size. The higher the radiance map size, the more detailed the lighting from the [Sky] will be.
 			See [enum RadianceSize] constants for values. Default size is [constant RADIANCE_SIZE_512].
 		</member>
 	</members>
 	<constants>
 		<constant name="RADIANCE_SIZE_32" value="0" enum="RadianceSize">
-			Radiance texture size is 32x32 pixels.
+			Radiance texture size is 32×32 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_64" value="1" enum="RadianceSize">
-			Radiance texture size is 64x64 pixels.
+			Radiance texture size is 64×64 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_128" value="2" enum="RadianceSize">
-			Radiance texture size is 128x128 pixels.
+			Radiance texture size is 128×128 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_256" value="3" enum="RadianceSize">
-			Radiance texture size is 256x256 pixels.
+			Radiance texture size is 256×256 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_512" value="4" enum="RadianceSize">
-			Radiance texture size is 512x512 pixels.
+			Radiance texture size is 512×512 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_1024" value="5" enum="RadianceSize">
-			Radiance texture size is 1024x1024 pixels.
+			Radiance texture size is 1024×1024 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_2048" value="6" enum="RadianceSize">
-			Radiance texture size is 2048x2048 pixels.
+			Radiance texture size is 2048×2048 pixels.
 		</constant>
 		<constant name="RADIANCE_SIZE_MAX" value="7" enum="RadianceSize">
 			Represents the size of the [enum RadianceSize] enum.