Update logging for Laravel 5.6 #1221

.env.docker

@@ -17,6 +17,9 @@ APP_KEY=${FF_APP_KEY}
 APP_URL=${APP_URL}
 TRUSTED_PROXIES=${TRUSTED_PROXIES}
 
+# The log channel defines where your log entries go to.
+LOG_CHANNEL=${LOG_CHANNEL}
+
 # Database credentials. Make sure the database exists. I recommend a dedicated user for Firefly III
 # If you use SQLite, set connection to `sqlite` and remove the database, username and password settings.
 DB_CONNECTION=mysql