WebHost: server render remaining markdown using mistune (#5276)

---------

Co-authored-by: Aaron Wagener <mmmcheese158@gmail.com>
Co-authored-by: qwint <qwint.42@gmail.com>
Co-authored-by: black-sliver <59490463+black-sliver@users.noreply.github.com>

worlds/ahit/__init__.py

@@ -34,7 +34,7 @@ class AWebInTime(WebWorld):
         "Multiworld Setup Guide",
         "A guide for setting up A Hat in Time to be played in Archipelago.",
         "English",
-        "ahit_en.md",
+        "setup_en.md",
         "setup/en",
         ["CookieCat"]
     )]

worlds/osrs/__init__.py

@@ -25,7 +25,7 @@ class OSRSWeb(WebWorld):
         "Multiworld Setup Guide",
         "A guide to setting up the Old School Runescape Randomizer connected to an Archipelago Multiworld",
         "English",
-        "docs/setup_en.md",
+        "setup_en.md",
         "setup/en",
         ["digiholic"]
     )

worlds/yugioh06/__init__.py

@@ -56,7 +56,7 @@ class Yugioh06Web(WebWorld):
         "A guide to setting up Yu-Gi-Oh! - Ultimate Masters Edition - World Championship Tournament 2006 "
         "for Archipelago on your computer.",
         "English",
-        "docs/setup_en.md",
+        "setup_en.md",
         "setup/en",
         ["Rensen"],
     )