Add README

Author: methane

README.md

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+# MySQL's login path file reader
+
+Decrypt and parse MySQL's login path file.
+
+See also: https://dev.mysql.com/doc/refman/8.0/en/mysql-config-editor.html
+
+
+## Example
+
+```console
+$ mysql_config_editor set --login-path=client --host=localhost --user=localuser --password
+Enter password: <Type password here>
+```
+
+```python
+import myloginpath, MySQLdb
+conf = myloginpath.parse('client')
+print(conf)  # {'host': 'localhost', 'user': 'localuser', 'password': 'secretstring'}
+conn = MySQLdb.connect(**conf, db="myapp")
+```