Merge pull request #129 from microsoft/qinezh-patch-1

docs: update WHATS_NEW.md for 0.8.0

Author: qinezh

WHATS_NEW.md

@@ -1,5 +1,11 @@
 # What's New in AI Toolkit for VS Code Preview
 
+## Version 0.8.0
+This is a milestone release with core feature additions and improvements
+  - Support Batch Run that user can run any prompts from imported datasets or run in full batch 
+  - Evaluate a dataset with a set of pre-defined popular evaluators
+  - Incremental UI/UX improvements and bug fixes
+
 ## Version 0.6.2
 This is a patch version to the major milestone release v0.6.0, with some highly demanded feature improvements and bug fixes:
   - Support Ollama models from more UI entries with improved doc