docs(composables): fix close tag ContentRenderer

[ramsesgarate]

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

By copying the following code from the documentation

<script setup lang="ts">
const { page } = useContent()
</script>

<template>
  <ContentRenderer :key="page._id" :value="page">
</template>

It was giving me an error, it turns out that the ContentRenderer component did not have the closing tag, so I proceeded to update it in the documentation

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