Do you know how to capitalize titles and headings?

<introEmbed body={<> Using correct capitalization in titles and headings for web content is crucial. For **main titles**, capitalize the first word, all nouns, verbs (even short ones like "is"), adjectives, and proper nouns. Conjunctions and prepositions should not be capitalized. E.g. "at", "on", "but", "and", "with", etc **Subtitles/subheadings** should be written in regular sentence form, without additional capitalization. </>} />

You can find more rules & tips about this subject in the article Title Case: Capitalization of Titles, Headings, and Headlines

It's best to only do this on main titles, and leave subtitles in normal sentence form - only capitalize the first word and proper nouns. Basically, it saves hassles... English is a confusing language, and there are too many variations that cause too many arguments.