Update endpoint for Bitlair (#299)

Author: polyfloyd

directory.json

@@ -13,7 +13,7 @@
   "B4CKSP4CE": "https://spaceapi.0x08.in/",
   "Bastli": "http://bastli.ch/hackspace_api.php",
   "Binary Kitchen": "https://www.binary-kitchen.de/spaceapi.php",
-  "Bitlair": "https://bitlair.nl/statejson.php",
+  "Bitlair": "https://bitlair.nl/spaceapi.json",
   "Breizh-Entropy": "http://breizh-entropy.org/spaceapi.json",
   "Brixel": "https://status.brixel.space/api/status",
   "Brisbane Makerspace": "https://portal.brisbanemaker.space/api/spacedirectory/",