Enhance README with additional features and details

Updated project description to include support for stocks and commodities, and added details on real-time price quotes and trends.

Author: juntao

README.md

@@ -1,6 +1,6 @@
 # fintool
 
-A Rust CLI for financial trading and market intelligence — spot and perpetual futures on **Hyperliquid**, **Unit**, **Binance**, and **Coinbase**, stock quotes, LLM-enriched analysis, SEC filings, and news.
+A Rust CLI for financial trading and market intelligence — spot and perpetual futures on **Hyperliquid**, **Unit**, **Binance**, and **Coinbase**. Supports crypto, stocks, and commodities. Get real-time price quotes, trends, perp funding rates, LLM-enriched analysis, SEC filings, and news.
 
 ## Install as an OpenClaw Skill