Convert tests to Vitest (#4)

packages/website/app/routes/guides/embeds.md

@@ -0,0 +1,64 @@
+---
+order: 2
+meta:
+  title: Embeds
+  description: Using embed components
+---
+
+# Embeds
+
+Reacord comes with an `<Embed />` component for sending rich embeds.
+
+```jsx
+import { Embed } from "reacord"
+
+function FancyMessage({ title, description }) {
+  return (
+    <Embed
+      title={title}
+      description={description}
+      color={0x00ff00}
+      timestamp={Date.now()}
+    />
+  )
+}
+```
+
+```jsx
+reacord.send(channelId, <FancyMessage title="Hello" description="World" />)
+```
+
+Reacord also comes with multiple embed components, for defining embeds on a piece-by-piece basis. This enables composition:
+
+```jsx
+import { Embed, EmbedTitle } from "reacord"
+
+function FancyDetails({ title, description }) {
+  return (
+    <>
+      <EmbedTitle>{title}</EmbedTitle>
+      {/* embed descriptions are just text */}
+      {description}
+    </>
+  )
+}
+
+function FancyMessage({ children }) {
+  return (
+    <Embed color={0x00ff00} timestamp={Date.now()}>
+      {children}
+    </Embed>
+  )
+}
+```
+
+```jsx
+reacord.send(
+  channelId,
+  <FancyMessage>
+    <FancyDetails title="Hello" description="World" />
+  </FancyMessage>,
+)
+```
+
+See the [API Reference](/api/index.html#EmbedAuthorProps) for the full list of embed components.