Update src/main/resources/explanations/challenge23_hint.adoc
You can solve this challenge by the following steps:
1. Find the secret in the front-end
-- Use the developer tools of the browser to see the HTLM code of this challenge.
+- Use the developer tools of the browser to see the HTML code of this challenge.
- Go to the end of the challenge description and look for comments.
2. Decode the base64 encoded secret
- Go to the source of Challenge23 and find the actual Base64 encoded answer
