change [retro] to retro_

AUTHORS.md

@@ -23,9 +23,9 @@ Asset⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀|Year|Authors and License|Auth
 ├⠀ `Interior.png` | 2022 | JasonPerry [CC0] | https://finalbossblues.itch.io/
 ├⠀ `Ship.png` | 2022 | JasonPerry [CC0] | https://finalbossblues.itch.io/
 ├⠀ `World.png` | 2022 | JasonPerry [CC0] | https://finalbossblues.itch.io/
-├⠀ `[retro]Dungeon.png` | 2018 | Dmytro Kushnariov [CC0] | https://easyrpg.org
-├⠀ `[retro]Exterior.png` | 2017 | MrBeast [CC-BY], <br/>Stephen Challener (Redshrike) [CC-BY] (commissioned by OpenGameArt), <br/>Carl Olsson (surt) [CC0], <br/>Ogrebane [CC0], <br/>Garrett Wessner (Gwes) [CC0], <br/>Dmytro Kushnariov (jikmok) [CC0], <br/>Tom Lemmens [CC0], <br/>marianognu [WTFPL] | surt: https://opengameart.org/content/town-tiles, <br/>surt: https://opengameart.org/content/forest-tiles, <br/>beast: https://opengameart.org/content/worldmapoverworld-tileset, <br/>orgebane: https://opengameart.org/content/16x16-tiles, <br/>redshrike: https://opengameart.org/content/16x16-indoor-rpg-tileset-the-baseline, <br/>beast: https://opengameart.org/content/m13-cave-tileset, <br/>marianognu: https://community.easyrpg.org/t/basis-png-by-marianognu/121
-└⠀ `[retro]World.png` | 2014 | MrBeast [CC-BY], <br/>Stephen Challener (Redshrike) [CC-BY] (commissioned by OpenGameArt), <br/>Carl Olsson (surt) [CC0], <br/>Ogrebane [CC0], <br/>Garrett Wessner (Gwes) [CC0], <br/>Dmytro Kushnariov (jikmok) [CC0] | surt: https://opengameart.org/content/town-tiles, <br/>surt: https://opengameart.org/content/forest-tiles, <br/>beast: https://opengameart.org/content/worldmapoverworld-tileset, <br/>orgebane: https://opengameart.org/content/16x16-tiles, <br/>redshrike: https://opengameart.org/content/16x16-indoor-rpg-tileset-the-baseline, <br/>beast: https://opengameart.org/content/m13-cave-tileset, <br/>gwes: https://opengameart.org/content/nes-CC0-graphics-2
+├⠀ `retro_Dungeon.png` | 2018 | Dmytro Kushnariov [CC0] | https://easyrpg.org
+├⠀ `retro_Exterior.png` | 2017 | MrBeast [CC-BY], <br/>Stephen Challener (Redshrike) [CC-BY] (commissioned by OpenGameArt), <br/>Carl Olsson (surt) [CC0], <br/>Ogrebane [CC0], <br/>Garrett Wessner (Gwes) [CC0], <br/>Dmytro Kushnariov (jikmok) [CC0], <br/>Tom Lemmens [CC0], <br/>marianognu [WTFPL] | surt: https://opengameart.org/content/town-tiles, <br/>surt: https://opengameart.org/content/forest-tiles, <br/>beast: https://opengameart.org/content/worldmapoverworld-tileset, <br/>orgebane: https://opengameart.org/content/16x16-tiles, <br/>redshrike: https://opengameart.org/content/16x16-indoor-rpg-tileset-the-baseline, <br/>beast: https://opengameart.org/content/m13-cave-tileset, <br/>marianognu: https://community.easyrpg.org/t/basis-png-by-marianognu/121
+└⠀ `retro_World.png` | 2014 | MrBeast [CC-BY], <br/>Stephen Challener (Redshrike) [CC-BY] (commissioned by OpenGameArt), <br/>Carl Olsson (surt) [CC0], <br/>Ogrebane [CC0], <br/>Garrett Wessner (Gwes) [CC0], <br/>Dmytro Kushnariov (jikmok) [CC0] | surt: https://opengameart.org/content/town-tiles, <br/>surt: https://opengameart.org/content/forest-tiles, <br/>beast: https://opengameart.org/content/worldmapoverworld-tileset, <br/>orgebane: https://opengameart.org/content/16x16-tiles, <br/>redshrike: https://opengameart.org/content/16x16-indoor-rpg-tileset-the-baseline, <br/>beast: https://opengameart.org/content/m13-cave-tileset, <br/>gwes: https://opengameart.org/content/nes-CC0-graphics-2
 **📁 `GameOver`**|  
 └⠀ `Game Over.png` | 2020 | jetrotal [CC0], <br/>kou [CC-BY] (koubit_001 Font) | https://github.com/jetrotal, <br/>https://www.pentacom.jp/pentacom/bitfontmaker2/gallery/?id=265
 **📁 `Monster`**|