Fix drone config

.drone.yml

@@ -13,8 +13,8 @@ steps:
   image: golang
   commands:
   - echo $SECRET_MESSAGE
-  - (./Phasmobot -t $DISCORD_TOKEN)
-  secrets: [discord_token, secret_message]
+  - ./Phasmobot -t $${DISCORD_TOKEN}
+  secrets: [ discord_token, secret_message ]
   when:
     branch:
       - deploy
@@ -34,4 +34,4 @@ steps:
       - adler32
       - crc32  
   when:
-    event: tag
+    event: [tag]