fix mysql comment

backend/src/init_db/init_db.sql

@@ -1,14 +1,14 @@
---We allow "user" to connect to commonplace_dev_db for whatever IP docker assigns
+-- We allow "user" to connect to commonplace_dev_db for whatever IP docker assigns
 CREATE DATABASE IF NOT EXISTS commonplace_dev_db;
 CREATE USER IF NOT EXISTS 'user'@'%' IDENTIFIED BY 'password';
 GRANT ALL PRIVILEGES ON commonplace_dev_db.* TO 'user'@'%';
 
---We allow "user" to connect to commonplace_test_db for whatever IP docker assigns
+-- We allow "user" to connect to commonplace_test_db for whatever IP docker assigns
 CREATE DATABASE IF NOT EXISTS commonplace_test_db;
 CREATE USER IF NOT EXISTS 'user'@'%' IDENTIFIED BY 'password';
 GRANT ALL PRIVILEGES ON commonplace_test_db.* TO 'user'@'%';
 
---We haven't configured local SSL, so we'll use mysql_native_password instead of caching_sha2_password
+-- We haven't configured local SSL, so we'll use mysql_native_password instead of caching_sha2_password
 ALTER USER 'user'@'%' IDENTIFIED WITH mysql_native_password BY 'password';
 
 FLUSH PRIVILEGES;