Add link to template directives directly from astro-components page

[sarah11918]

📚 Subject area/topic

component directives

📋 Suggested page

https://docs.astro.build/en/basics/astro-components/

📋 General description or bullet points (if proposing new content)

Consider linking to the Template directives reference page from the Astro Components basics page. Maybe with a section heading like "Component directives" since people might not know a directive is what they're looking for.

🖥️ Reproduction of code samples in StackBlitz

No response