Fix image

Author: jgthms

docs/_data/sponsors.json

@@ -285,7 +285,7 @@
       "height":"24",
       "follow": true
     },
-    "123Calendars": {
+    "123calendars": {
       "name": "123Calendars",
       "url": "https://www.123calendars.com/",
       "title": "2021 Calendar",
@@ -314,7 +314,7 @@
     ,"rajbet"
     ,"gamblizard"
     ,"casinofiables"
-    ,"123Calendars"
+    ,"123calendars"
   ],
   "footer": [
     "polygon"