Update toc.yml

Author: santiagxf

articles/ai-studio/toc.yml

@@ -111,14 +111,16 @@ items:
           href: how-to/healthcare-ai/deploy-cxrreportgen.md
         - name: MedImageParse - prompted segmentation model
           href: how-to/healthcare-ai/deploy-medimageparse.md
-    - name: Phi-3 family models
+    - name: Microsoft Phi family models
       items:
-        - name: Phi-3 family chat models
+        - name: Phi-3 chat models
           href: how-to/deploy-models-phi-3.md
         - name: Phi-3 chat model with vision
           href: how-to/deploy-models-phi-3-vision.md
         - name: Phi-3.5 chat model with vision
           href: how-to/deploy-models-phi-3-5-vision.md
+        - name: Phi-4 chat models
+          href: how-to/deploy-models-phi-4.md
         - name: Fine-tune Phi-3 chat models
           href: how-to/fine-tune-phi-3.md
     - name: Cohere models