docs: add embedding reference (#1584)

content/docs/07-reference/ai-sdk-core/05-embed.mdx

@@ -0,0 +1,16 @@
+---
+title: embed
+description: Embed a single value using the AI SDK Core
+---
+
+# `embed`
+
+Generate an embedding for a single value using an embedding model.
+
+This is ideal for use cases where you need to embed a single value to e.g. retrieve similar items or to use the embedding in a downstream task.
+
+## Import
+
+<Snippet text={`import { embed } from "ai"`} prompt={false} />
+
+<ReferenceTable packageName="core" functionName="embed" />

content/docs/07-reference/ai-sdk-core/index.mdx

@@ -9,23 +9,29 @@ description: Reference documentation for the AI SDK Core
   cards={[
     {
       title: 'generateText',
-      description: 'Generate text from a model.',
+      description: 'Generate text from a language model.',
       href: '/docs/reference/ai-sdk-core/generate-text',
     },
     {
       title: 'streamText',
-      description: 'Stream text generation from a model.',
+      description: 'Stream text generation from a language model.',
       href: '/docs/reference/ai-sdk-core/stream-text',
     },
     {
       title: 'generateObject',
-      description: 'Generate structured data from a model.',
+      description: 'Generate structured data from a language model.',
       href: '/docs/reference/ai-sdk-core/generate-object',
     },
     {
       title: 'streamObject',
-      description: 'Stream structured data generation from a model.',
+      description: 'Stream structured data generation from a language model.',
       href: '/docs/reference/ai-sdk-core/stream-object',
     },
+    {
+      title: 'embed',
+      description:
+        'Generate an embedding for a single value using an embedding model.',
+      href: '/docs/reference/ai-sdk-core/embed',
+    },
   ]}
 />