Updated messages in json files to be more cross platform.

TobyCustom/Project_BrutalityLatest.json

@@ -5,9 +5,8 @@
       "file": "Project_Brutality-Latest.pk3",
       "url": "https://www.moddb.com/mods/project-brutality",
       "messages": [
-        "This should be included by default.",
-        "If you are seeing this message, please reinstall after removing any TobyDoom files from ~/.cache/linux-game-manager.",
-        "rm -f ~/.cache/linux-game-manager/TobyAccessibilityMod_Version*"
+        "Place the pk3 in the Toby Doom directory. On Linux/Mac this is ~/.local/games/doom",
+        "This version may or may not work under Windows. I had trouble with it in a VM."
       ]
     }
   ],