Add example.env

Added example .env file

example.env

@@ -0,0 +1,19 @@
+# Example .env file.
+# Rename this file to ".env" and fill in your credentials accordingly.
+
+# Discord bot credentials
+DISCORD_BOT_TOKEN=[Discord bot/access token]
+DISCORD_OWNER_ID=[Discord owner user ID]
+
+# Twitch bot credentials
+TWITCH_CLIENT_ID=[Twitch bot client ID]
+TWITCH_CLIENT_SECRET=[Twitch bot client secret]
+TWITCH_BOT_TOKEN=[Twitch bot/access token]
+TWITCH_REFRESH_TOKEN=[Twitch bot refresh token]
+
+# MariaDB Database credentials
+DB_HOST=[Database host IP address]
+DB_USER=[Database username]
+DB_PASSWORD=[Database user password]
+DB_NAME=[Database name]
+DB_PORT=[Database port]