Update README index

Author: alexrudall

README.md

@@ -22,7 +22,9 @@ Stream text with GPT-4, transcribe and translate audio with Whisper, or create i
     - [With Config](#with-config)
       - [Custom timeout or base URI](#custom-timeout-or-base-uri)
       - [Extra Headers per Client](#extra-headers-per-client)
-      - [Verbose Logging](#verbose-logging)
+      - [Logging](#logging)
+        - [Errors](#errors)
+        - [Faraday middleware](#faraday-middleware)
       - [Azure](#azure)
       - [Ollama](#ollama)
     - [Counting Tokens](#counting-tokens)