Add missing comma (#2612)

Author: ChaituVR

spaces/domains.json

@@ -56,7 +56,7 @@
   "vote.hash2o.com": "hash2o.eth",
   "vote.allianceblock.io": "allianceblockdao.eth",
   "dao.bmcc.finance": "bmcc.eth",
-  "brethren.venturepirates.xyz": "venturepirates.eth"
+  "brethren.venturepirates.xyz": "venturepirates.eth",
   "vote.persiandao.io": "persiandao.eth",
   "vote.adneo.xyz": "adneo.eth",
   "dao.xtressials.com": "xtressials.eth",