docs: Add docs for the new feature of password obfuscator.

docs/organization/passwordObfuscator.md

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+---
+title: Password Obfuscator
+description: Supporting different password obfuscator options.
+keywords: [password, obfuscator]
+authors: [ZhaoYP-2001]
+---
+
+Here, we will show you how to enable the option to specify the password obfuscator for the password parameter of the login API.
+
+## Configuration
+
+On the organization edit page, you can find the `Password obfuscator` configuration option. You can select the encryption algorithm from the dropdown list.
+
+![password_obfuscator](/img/organization/password_obfuscator/password_obfuscator.png)
+
+- Plain: The password parameter of the login API will be transmitted directly in plain text.
+- AES: The password parameter of the login API will first be encrypted using the AES algorithm and then transmitted in ciphertext form.
+- DES: The password parameter of the login API will first be encrypted using the DES algorithm and then transmitted in ciphertext form.
+
+Each time you update the encryption algorithm other than Plain, Casdoor will randomly generate an encryption key for you and populate it into the `Password obf key` configuration option. If you want to specify the encryption key for the encryption algorithm, you can modify the key in `Password obf key` configuration option:
+
+![password_obf_key](/img/organization/password_obfuscator/password_obf_key.png)
+
+:::note
+
+If your key does not meet the encryption algorithm requirements, Casdoor will prompt you with the regular expression that the key should meet in the error message.
+
+:::
+
+Here is a demo video that shows how to use password obfuscator:
+
+<video src="/img/organization/password_obfuscator/password_obfuscator.mp4" controls="controls" width="100%"></video>