Update 'README.md'

README.md

@@ -10,3 +10,9 @@ DB_PASSWORD="123456"
 TARGET_FILENAME=${DB_NAME}_dump_$(date -d "today" +"%Y%m%d%H%M%S").sql
 mysqldump -v -h $DB_HOST --user=$DB_USER -p"$DB_PASSWORD" $DB_NAME > $TARGET_FILENAME
 ```
+
+## Import
+```bash
+mysql -uroot -p database_name < file.sql
+```
+