fix table in README.md (#35686)

Author: DOliana

sdk/documentintelligence/azure-ai-documentintelligence/README.md

@@ -29,10 +29,11 @@ python -m pip install azure-ai-documentintelligence
 ```
 
 This table shows the relationship between SDK versions and supported API service versions:
-|SDK version|Supported API service version
-|-|-
-|1.0.0b1 | 2023-10-31-preview
-|1.0.0b2 | 2024-02-29-preview
+
+|SDK version|Supported API service version|
+|-|-|
+|1.0.0b1 | 2023-10-31-preview|
+|1.0.0b2 | 2024-02-29-preview|
 
 Older API versions are supported in `azure-ai-formrecognizer`, please see the [Migration Guide][migration-guide] for detailed instructions on how to update application.