Added Mieno's black the evil grrrrremlin commish

.gitattributes

@@ -91,3 +91,5 @@ img/ref/chili.png filter=lfs diff=lfs merge=lfs -text
 img/ref/gabriel.png filter=lfs diff=lfs merge=lfs -text
 img/ref/hype.png filter=lfs diff=lfs merge=lfs -text
 img/ref/mii.png filter=lfs diff=lfs merge=lfs -text
+sheet/5-8.webp filter=lfs diff=lfs merge=lfs -text
+img/72.png filter=lfs diff=lfs merge=lfs -text

index.json

@@ -1498,6 +1498,7 @@
         },{
             "index": 71,
             "previous": 70,
+            "next": 72,
             "sheet": "sheet/5-7.webp",
             "year": 2022,
             "month": 3,
@@ -1512,6 +1513,21 @@
             "width": "1280", "height": "676",
             "characters": [ "Rayna" ],
             "colour": "#A9E"
+        },{
+            "index": 72,
+            "previous": 71,
+            "sheet": "sheet/5-8.webp",
+            "year": 2022,
+            "month": 3,
+            "day": 21,
+            "artist": "Mieno",
+            "title": "Black the evil grrrrremlin",
+            "description": [
+                "<a href='#artistMieno'>Mieno</a> had this small stylish thing that I just couldn't leave.",
+                "Black the Lynx be a gremlin confirmed?"
+            ],
+            "width": "1280", "height": "1242",
+            "extrachars": ["Black"]
         }
     ]
 }