ChecksFinder: Tweak link in ChecksFinder (#2353)

Co-authored-by: Ludovic Marechal <marechal-l@gmx.com>
Co-authored-by: Marech <marechal-l@gmx.com>
Co-authored-by: Fabian Dill <Berserker66@users.noreply.github.com>
Co-authored-by: black-sliver <59490463+black-sliver@users.noreply.github.com>

worlds/checksfinder/__init__.py

@@ -14,8 +14,8 @@ class ChecksFinderWeb(WebWorld):
         "A guide to setting up the Archipelago ChecksFinder software on your computer. This guide covers "
         "single-player, multiworld, and related software.",
         "English",
-        "checksfinder_en.md",
-        "checksfinder/en",
+        "setup_en.md",
+        "setup/en",
         ["Mewlif"]
     )]