Add MHWI entry for Brute Tigrex

monsters.json

@@ -1751,6 +1751,11 @@
           "image": "MH4U-Brute_Tigrex_Icon.png",
           "info": "A black Tigrex subspecies. The force and range of its howl is even more fearsome than that of its cousins."
         },
+        {
+          "game": "Monster Hunter World",
+          "image": "MHWI-Brute_Tigrex_Icon.png",
+          "info": "Blackish brown scales and a stronger roar set this Tigrex subspecies apart. Extremely aggressive, even by Tigrex standards."
+        },
         {
           "game": "Monster Hunter Stories 2",
           "image": "MHST2-Brute_Tigrex_Icon.png",
@@ -9587,4 +9592,4 @@
       ]
     }
   ]
-}
+}