docs: add DeepSeek OpenAI compat for Go

src/content/docs/docs/integrations/deepseek.mdx

@@ -1,21 +1,90 @@
 ---
 title: DeepSeek Plugin
-description: Learn how to configure and use Genkit DeepSeek plugin to access DeepSeek models in JavaScript.
+description: Learn how to configure and use Genkit DeepSeek plugin to access DeepSeek models in JavaScript and Go.
 ---
 
 import LanguageSelector from '../../../../components/LanguageSelector.astro';
 import CopyMarkdownButton from '../../../../components/CopyMarkdownButton.astro';
 import LanguageContent from '../../../../components/LanguageContent.astro';
 
 <div style="display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin: 1rem 0 1rem 0;">
-  <LanguageSelector supportedLanguages="js" />
+  <LanguageSelector supportedLanguages="js go" />
   <CopyMarkdownButton />
 </div>
 
 <LanguageContent lang="go">
-  :::note[Feature unavailable for Go]
-The DeepSeek plugin has not yet been made available for Go.
-:::
+The DeepSeek plugin provides access to DeepSeek models through OpenAI-compatible endpoints in Go.
+
+## Configuration
+```go
+import "github.com/firebase/genkit/go/plugins/compat_oai/deepseek"
+```
+```go
+g := genkit.Init(context.Background(), genkit.WithPlugins(&deepseek.DeepSeek{
+    Opts: []option.RequestOption{
+        option.WithAPIKey("DEEPSEEK_API_KEY"),
+    },
+}))
+```
+You must provide an API key from DeepSeek. You can get an API key from the [DeepSeek Platform](https://platform.deepseek.com/sign_in)
+
+## Supported Models
+- `deepseek-chat`
+- `deepseek-reasoner`
+
+More information about the supported models and its capabilities can be found in the [DeepSeek API docs](https://api-docs.deepseek.com/quick_start/pricing)
+
+## Usage Example
+```go
+import (
+	"context"
+	"math"
+
+	"github.com/firebase/genkit/go/ai"
+	"github.com/firebase/genkit/go/genkit"
+	oai_deepseek "github.com/firebase/genkit/go/plugins/compat_oai/deepseek"
+	"github.com/openai/openai-go"
+)
+
+func main() {
+	ctx := context.Background()
+
+	// DEEPSEEK_API_KEY and DEEPSEEK_BASE_URL environment values will be read automatically unless
+	// they are provided via `option.RequestOption{}`
+	g := genkit.Init(ctx,
+		genkit.WithPlugins(&oai_deepseek.DeepSeek{}),
+		genkit.WithDefaultModel("deepseek/deepseek-chat"))
+
+	// Define a tool for calculating gablorkens
+	gablorkenTool := genkit.DefineTool(g, "gablorken", "use when need to calculate a gablorken",
+		func(ctx *ai.ToolContext, input struct {
+			Value float64
+			Over  float64
+		},
+		) (float64, error) {
+			return math.Pow(input.Value, input.Over), nil
+		},
+	)
+
+	genkit.DefineStreamingFlow(g, "streaming tool", func(ctx context.Context, input any, cb ai.ModelStreamCallback) (string, error) {
+		config := &openai.ChatCompletionNewParams{
+      Temperature: openai.Float(0.5),
+    }
+		resp, err := genkit.Generate(ctx,
+			g,
+			ai.WithPrompt("calculate the gablorken of value 3 over 5"),
+			ai.WithTools(gablorkenTool),
+			ai.WithStreaming(cb),
+			ai.WithConfig(config))
+		if err != nil {
+			return "", err
+		}
+		return resp.Text(), nil
+	})
+
+	<-ctx.Done()
+}
+```
 </LanguageContent>
 
 <LanguageContent lang="python">