[ZEPPELIN-6124] cannot accessed URL of the wiki in Roadmap.md file

[moto6]

What is this PR for?

• This PR addresses an issue where the wiki page cannot be accessed correctly in some environments, even when the URL of the roadmap is entered. The "Roadmap.md" file in the project's root directory contains a URL linking to the roadmap document on the wiki. However, clicking this URL fails to provide proper access.

What type of PR is it?

Documentation
Please leave your type of PR only

Todos

• - Implement URL extraction feature from the wiki.

What is the Jira issue?

• Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN-6124
• Put link here, and add ZEPPELIN-6124 in PR title

How should this be tested?

• This is a simple modification to the document Therefore, there is nothing to test;
  • you only need to read the document to check if it aligns with the project's direction and click on the wiki URL link to see if it works properly.

Screenshots (if appropriate)

Questions:

• Does the license files need to update? : no
• Is there breaking changes for older versions? : no
• Does this needs documentation? : no

[ParkGyeongTae]

LGTM