Update README.md to include auth login fix for github codespaces users

README.md

@@ -41,7 +41,7 @@
 - Renders citations and thought process for each answer
 - Includes settings directly in the UI to tweak the behavior and experiment with options
 - Integrates Azure AI Search for indexing and retrieval of documents, with support for [many document formats](/docs/data_ingestion.md#supported-document-formats) as well as [integrated vectorization](/docs/data_ingestion.md#overview-of-integrated-vectorization)
 - Optional usage of [GPT-4 with vision](/docs/gpt4vision.md) to reason over image-heavy documents
 - Optional addition of [speech input/output](/docs/deploy_features.md#enabling-speech-inputoutput) for accessibility
 - Optional automation of [user login and data access](/docs/login_and_acl.md) via Microsoft Entra
 - Performance tracing and monitoring with Application Insights
@@ -134,6 +134,11 @@
     azd auth login
     ```
 
+    For GitHub Codespaces users, if the previous command fails, try 
+   ```shell
+    azd auth login --use-device-code 
+    ```
+
 1. Create a new azd environment:
 
     ```shell