Update README to specify --password with MySQL, consistent with

devbox.json. Also for mariadb, specify --socket to work around #2522.

Author: jefft

examples/databases/mariadb/README.md

@@ -3,7 +3,7 @@
 ## mariadb Notes
 
 1. Start the mariadb server using `devbox services up`
-1. Create a database using `"mysql -u root < setup_db.sql"`
+1. Create a database using `"mysql --socket-path=$MYSQL_UNIX_PORT --password='' < setup_db.sql"`
 1. You can now connect to the database from the command line by running `devbox run connect_db`
 
 ## Services

examples/databases/mysql/README.md

@@ -3,7 +3,7 @@
 ## mysql Notes
 
 1. Start the mysql server using `devbox services up`
-1. Create a database using `"mysql -u root < setup_db.sql"`
+1. Create a database using `"mysql -u root --password='' < setup_db.sql"`
 1. You can now connect to the database from the command line by running `devbox run connect_db`
 
 ## Services