docs: explain performance discovery features

README.md

@@ -1,6 +1,6 @@
 # Invesco
 
-One of the app's features lets you select Invesco ETFs in the Watchlist and aggregate their holdings to see how often each ticker appears across the selected funds. Repeated holdings make overlapping exposure visible: the more selected funds include a ticker, the greater its potential influence on the portfolio; gains in that holding may help, while declines may hurt, and actual impact also depends on each fund's position size. A single-file client-side tool that reads the generated `./api/invesco` static feed (invesco.com product-list / performance CSVs, per-fund daily holdings CSVs, the official per-fund prices & yields CSV as the default daily NAV/close history source, Yahoo Finance for distributions and as the history fallback, SEC EDGAR N-PORT-P only as a holdings fallback) into a searchable ETF/asset-class catalog with per-fund tabs, watchlist aggregation, ticker copy and CSV/TXT export — the same look, feel, columns and business logic as the sibling applications.
+One of the app's features lets you select Invesco ETFs in the Watchlist and aggregate their holdings to see how often each ticker appears across the selected funds. Repeated holdings make overlapping exposure visible: the more selected funds include a ticker, the greater its potential influence on the portfolio; gains in that holding may help, while declines may hurt, and actual impact also depends on each fund's position size.  Another feature makes it faster and easier to find funds with stronger growth over different periods, higher dividend yields or distributions, greater Total Return (price performance plus dividends), and other key performance metrics. A single-file client-side tool that reads the generated `./api/invesco` static feed (invesco.com product-list / performance CSVs, per-fund daily holdings CSVs, the official per-fund prices & yields CSV as the default daily NAV/close history source, Yahoo Finance for distributions and as the history fallback, SEC EDGAR N-PORT-P only as a holdings fallback) into a searchable ETF/asset-class catalog with per-fund tabs, watchlist aggregation, ticker copy and CSV/TXT export — the same look, feel, columns and business logic as the sibling applications.
 
 ## Using Bun