Fix Gergo keyboard dimensions in info.json

keyboards/gergo/info.json

@@ -1,6 +1,6 @@
 {
     "maintainer": "germ",
-    "height": 4.75,
+    "height": 5.75,
     "width": 19.5,
     "keyboard_name": "Gergo",
     "url": "http://gboards.ca",