Put placeholder spamfilter env vars

Author: NuckChorris

.env

@@ -58,3 +58,8 @@ AOZORA_MONGO_URL=mongodb://localhost/aozora
 ANIME_PLANET_PROXY_HOST=anime-planet.com
 
 APPLE_VERIFICATION_URL=https://sandbox.itunes.apple.com/verifyReceipt
+
+SPAMFILTER_REGION=us-east-1
+SPAMFILTER_ACCESS_KEY_ID=nope
+SPAMFILTER_SECRET_ACCESS_KEY=nottodaysatan
+SPAMFILTER_ENDPOINT=kitsu-spam-classifier