Merge pull request #649 from Portkey-AI/feat/portkey-models-os

Add Portkey Models API documentation and update model catalog links

Author: vrushankportkey

docs.json

@@ -98,6 +98,7 @@
                     "group": "Model Catalog",
                     "pages": [
                       "product/model-catalog",
+                      "product/model-catalog/portkey-models",
                       "product/model-catalog/integrations",
                       "product/model-catalog/budget-limits",
                       "product/model-catalog/rate-limits",