Add penguin sounds (CC0) by Bidone...

https://freesound.org/s/66150/

README.md

@@ -57,6 +57,7 @@ A [Minetest][] mod that provides a set of free sounds & methods. It is intended
 | [peacock][]                       | dobroide                 | CC BY 3.0    |                         |
 | [pencil_erase][]                  | damsur                   | CC0          |                         |
 | [pencil_write][]                  | NachtmahrTV              | CC0          |                         |
+| [penguin*][penguin]               | Bidone                   | CC0          |                         |
 | [piano][]                         | [authors](#authors)      | CC0          |                         |
 | [pig][]                           | yottasounds              | CC BY 3.0    |                         |
 | [pigeon][]                        | JavierSerrat             | CC0          |                         |
@@ -280,6 +281,7 @@ end
 [peacock]: https://freesound.org/s/59186/
 [pencil_erase]: https://freesound.org/s/443241/
 [pencil_write]: https://freesound.org/s/571800/
+[penguin]: https://freesound.org/s/66150/
 [piano]: https://commons.wikimedia.org/wiki/File:Maple_leaf_rag.ogg
 [pig]: https://freesound.org/s/174615/
 [pigeon]: https://freesound.org/s/524345/

TODO.txt

@@ -19,7 +19,6 @@ TODO:
 	- leopard
 	- lamb
 	- parrot
-	- penguin
 	- puppy
 	- squirrel
 	- toucan

changelog.txt

@@ -2,6 +2,7 @@
 next
 ----
 - added sounds:
+	- penguin
 	- pig
 
 

groups.lua

@@ -294,6 +294,16 @@ sounds.pencil_write = SoundGroup({
 --  @sndgroup sounds.pencil
 sounds.pencil = sounds.pencil_erase + sounds.pencil_write
 
+--- Penguin sounds.
+--
+--  @sndgroup sounds.penguin
+--  @snd penguin_01
+--  @snd penguin_02
+sounds.penguin = SoundGroup({
+	"penguin_01",
+	"penguin_02",
+})
+
 --- Piano sounds.
 --
 --  @sndgroup sounds.piano