docs(config.md): update wildcard docs

docs/my-website/docs/proxy/configs.md

@@ -295,7 +295,7 @@ Dynamically call any model from any given provider without the need to predefine
 model_list:
   - model_name: "*"             # all requests where model not in your config go to this deployment
     litellm_params:
-      model: "openai/*"           # passes our validation check that a real provider is given
+      model: "*"           # passes our validation check that a real provider is given
 ```
 
 2. Start LiteLLM proxy 

litellm/proxy/_new_secret_config.yaml

@@ -1,4 +1,4 @@
 model_list:
-  - model_name: "gpt-3.5-turbo"             
+  - model_name: "*"             
     litellm_params:
-      model: "openai/gpt-3.5-turbo"
+      model: "*"

litellm/router.py

@@ -2937,8 +2937,8 @@ class Router:
                 model_group = kwargs["litellm_params"]["metadata"].get(
                     "model_group", None
                 )
-
-                id = kwargs["litellm_params"].get("model_info", {}).get("id", None)
+                model_info = kwargs["litellm_params"].get("model_info", {}) or {}
+                id = model_info.get("id", None)
                 if model_group is None or id is None:
                     return
                 elif isinstance(id, int):