Update README.md

Author: intitni

README.md

@@ -52,11 +52,12 @@ For suggestion features:
   - Active GitHub Copilot subscription.
 - For Codeium users:
   - Active Codeium account.
+- Access to other LLMs.
 
 For chat and prompt to code features:
 
 - A valid OpenAI API key.
-- Access to other LLMs, such as Azure OpenAI and LocalAI.
+- Access to other LLMs.
 
 ## Permissions Required
 
@@ -165,6 +166,15 @@ The installed language server is located at `~/Library/Application Support/com.i
 
 The installed language server is located at `~/Library/Application Support/com.intii.CopilotForXcode/Codeium/executable/`.
 
+#### Using Locally run LLMs
+
+You can also use locally run LLMs or as a suggestion provider using the [Custom Suggestion Service](https://github.com/intitni/CustomSuggestionServiceForCopilotForXcode) extension. It supports:
+
+- LLM with OpenAI compatible completions API
+- LLM with OpenAI compatible chat completions API
+- [Tabby](https://tabby.tabbyml.com)
+- etc.
+
 ### Setting Up Chat Feature
 
 1. In the host app, navigate to "Service - Chat Model".