Update README.md

fix typo in mysqldump example

README.md

@@ -35,7 +35,7 @@ $ ./composer.phar global update camcima/php-mysql-diff
 PHP MySQL Diff works with database creations scripts created by `mysqldump`, which is part of the MySQL distribution. In order to generate a database creation script, use the following command:
 
 ```
-$ mysqlsump -h hostname -u username -p -d dbname > outputfile.sql
+$ mysqldump -h hostname -u username -p -d dbname > outputfile.sql
 ```
 
 This tool may not work with creation scripts generated by other means because it relies on finely tuned regular expressions that could not work if the file format is different.