Add new bad URL (#213)

polkadot-promo.net

advancedpolkadot[.]com - "info@blockchain.st" 💁‍♂️😕
goldpolkadot[.]com - "info@blockchain.st" 💁‍♂️😕
polkadot[.]casa/#top-widget1 - some sort of bitcoin ponzi, not related to DOT, ignoring
polkadotsevent[.]com - landing page, will monitor it
polkadot365[.]com - landing page, will monitor it
polkadotbank[.]com - "info@blockchain.st" 💁‍♂️😕

all.json

@@ -52,6 +52,7 @@
     "polkadot-online.com",
     "polkadot-online.live",
     "polkadot-promo.info",
+    "polkadot-promo.net",
     "polkadot-support.com",
     "polkadot-wallet.com",
     "polkadot-wallet.org",