Improve README with comprehensive feature documentation

Streamlined structure, added AI commentary, Strong's Concordance details,
family tree explorer, PDF export, accessibility features, and API docs.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/find_missing_1chronicles.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+"""Find verses in 1 Chronicles that don't have commentary."""
+
+import json
+from pathlib import Path
+
+# 1 Chronicles chapter verse counts
+CHAPTER_VERSES = {
+    1: 54, 2: 55, 3: 24, 4: 43, 5: 26, 6: 81, 7: 40, 8: 40, 9: 44,
+    10: 14, 11: 47, 12: 40, 13: 14, 14: 17, 15: 29, 16: 43, 17: 27,
+    18: 17, 19: 19, 20: 8, 21: 30, 22: 19, 23: 32, 24: 31, 25: 31,
+    26: 32, 27: 34, 28: 21, 29: 30
+}
+
+def main():
+    filepath = Path(__file__).parent.parent / "kjvstudy_org" / "data" / "verse_commentary" / "1_chronicles.json"
+
+    with open(filepath, 'r', encoding='utf-8') as f:
+        data = json.load(f)
+
+    existing = data.get("commentary", {})
+
+    missing = []
+    for chapter, verse_count in CHAPTER_VERSES.items():
+        chapter_str = str(chapter)
+        for verse in range(1, verse_count + 1):
+            verse_str = str(verse)
+            if chapter_str not in existing or verse_str not in existing[chapter_str]:
+                missing.append((chapter, verse))
+
+    print(f"Total verses in 1 Chronicles: {sum(CHAPTER_VERSES.values())}")
+    print(f"Verses with commentary: {sum(len(v) for v in existing.values())}")
+    print(f"Verses missing commentary: {len(missing)}")
+    print("\nFirst 20 missing verses:")
+    for i, (ch, v) in enumerate(missing[:20], 1):
+        print(f"{i}. 1 Chronicles {ch}:{v}")
+
+if __name__ == "__main__":
+    main()