📝 List three new features provided by the search engine

[AlexVCS]

What does this PR do?

Lists three new features recently provided/added by the search engine on the project's readme page.

Why is this change important?

To keep the documentation up to date and provide information about the new features for new users and visitors to this project. So that they have a better understanding of what features to expect while using the project.

Related issues

Closes #569