Add Nice-to-Haves section to README

- Clarify that CSV export and accessibility are optional
- Helps differentiate senior vs mid-level expectations

Author: maratgaip

README.md

@@ -41,6 +41,10 @@ Build a view that helps answer these questions:
 - Find specific organizations quickly
 - Understand the data even when things go wrong
 
+## Nice-to-Haves
+ - Export: "Copy CSV" functionality for the current view
+ - Accessibility: keyboard navigation, visible focus states, screen reader support
+
 ### Quality Expectations
 - Handle real-world data volumes gracefully
 - Provide clear feedback during loading and errors