Improve title of changelog page

What does this MR do?

Improve title of changelog page. It's a small thing but it confuses my brain right now.

Side note: I wish the font size was pretty much the same for normal text and code.

before	after

What are the relevant issue numbers?

None.

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for this project, if necessary
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Security reports checked/validated by reviewer