docs: add Microsoft GraphRAG to projects using LiteLLM (#17616)

* docs: add Microsoft GraphRAG to projects using LiteLLM

* docs: add arXiv paper link for GraphRAG

* docs: add GraphRAG to sidebar

* Update projects in sidebars.js

Reordered items in the projects list to include 'GraphRAG'.

docs/my-website/docs/projects/GraphRAG.md

@@ -0,0 +1,8 @@
+
+# Microsoft GraphRAG
+
+GraphRAG is a data pipeline and transformation suite that extracts meaningful, structured data from unstructured text using the power of LLMs. It uses a graph-based approach to RAG (Retrieval-Augmented Generation) that leverages knowledge graphs to improve reasoning over private datasets.
+
+- [Github](https://github.com/microsoft/graphrag)
+- [Docs](https://microsoft.github.io/graphrag/)
+- [Paper](https://arxiv.org/pdf/2404.16130)

docs/my-website/sidebars.js

@@ -848,13 +848,14 @@ const sidebars = {
               "Learn how to deploy + call models from different providers on LiteLLM",
             slug: "/project",
           },
-          items: [
+          items: [            
             "projects/smolagents",
             "projects/mini-swe-agent",
             "projects/openai-agents",
             "projects/Google ADK",
             "projects/Agent Lightning",
             "projects/Harbor",
+            "projects/GraphRAG",
             "projects/Docq.AI",
             "projects/PDL",
             "projects/OpenInterpreter",