doc headers

lib/volume/mfi/Mfi.md

@@ -1,5 +1,22 @@
 # MFI: Money Flow Index
 
+| Property         | Value                            |
+| ---------------- | -------------------------------- |
+| **Category**     | Volume                        |
+| **Inputs**       | OHLCV bar (TBar)                          |
+| **Parameters**   | `period` (default 14)                      |
+| **Outputs**      | Single series (Mfi)                       |
+| **Output range** | Unbounded                     |
+| **Warmup**       | `> period` bars                          |
+
+### TL;DR
+
+- Money Flow Index is the volume-weighted cousin of RSI.
+- Parameterized by `period` (default 14).
+- Output range: Unbounded.
+- Requires `> period` bars of warmup before first valid output (IsHot = true).
+- Validated against TA-Lib, Skender, and Tulip reference implementations where available.
+
 > "Volume confirms price, but money flow confirms intent." — Gene Quong & Avrum Soudack
 
 Money Flow Index is the volume-weighted cousin of RSI. While RSI measures the momentum of price changes alone, MFI incorporates volume to determine whether the price movement has conviction behind it. The result is an oscillator that can identify when strong hands are accumulating or distributing.
@@ -142,4 +159,4 @@ The TP and RMF calculations are fully vectorizable. The directional classificati
 
 - Quong, G. & Soudack, A. (1989). "Money Flow Index." *Technical Analysis of Stocks & Commodities*.
 - Investopedia. "Money Flow Index (MFI)." [Definition](https://www.investopedia.com/terms/m/mfi.asp)
-- StockCharts. "Money Flow Index (MFI)." [Technical Indicators](https://school.stockcharts.com/doku.php?id=technical_indicators:money_flow_index_mfi)
+- StockCharts. "Money Flow Index (MFI)." [Technical Indicators](https://school.stockcharts.com/doku.php?id=technical_indicators:money_flow_index_mfi)