docs: Add link to groq and ollama api documention

Author: cgarvis

lib/providers/groq.ex

@@ -3,6 +3,8 @@ defmodule HyperLLM.Provider.Groq do
 
   @moduledoc """
   Groq provider.
+
+  https://console.groq.com/docs/api-reference
   """
 
   @models [

lib/providers/ollama.ex

@@ -4,6 +4,8 @@ defmodule HyperLLM.Providers.Ollama do
   @moduledoc """
   Provider implementation for Ollama.
 
+  https://github.com/ollama/ollama/blob/main/docs/api.md#generate-a-chat-completion
+
   ## Configuration:
 
       config :hyper_llm,