Sneaked in a few last minute bug fixes for table mode.

docs/user.md

@@ -106,9 +106,32 @@ The startup selection is `reading.mode`.
 
 In table mode, word navigation moves between cells, line start/end moves to the
 first/last cell, and first/last text moves to the first/last character in the
-current cell. Place review on a header row and press **Fenrir+X** to use its
-cells as column headers. Outside table mode, Fenrir+X places a text-selection
-mark.
+current cell. Fenrir uses visible headings automatically when a text heading is
+followed by a row with at least two numeric fields. You can enter table mode,
+run `free -h`, and review its cells without setting headers yourself. Aligned
+tables use shared column boundaries so an unnamed heading or an empty field
+does not shift the remaining columns. Multiword headings and values stay in
+their cells when the visible alignment distinguishes them.
+
+When you begin reviewing a recognized table at or immediately above the
+application cursor, review starts at the first cell of its first data row. For
+example, after `free -h`, current word reads `Mem:` and next word reads the total
+memory value. The application cursor stays in place. Existing review positions
+are preserved while output updates; manual headers or clearing headers disable
+this automatic starting position.
+
+Automatic headers are inferred from the visible output block being reviewed;
+they are not remembered after the heading scrolls off screen. Text-only tables,
+wrapped output, and ambiguous or grouped headings may require manual selection.
+Place review on the desired header row and press **Fenrir+X** to replace the
+automatic headers. For grouped headings, select the row naming individual
+columns. Manual headers remain until cleared, table mode is left, or the screen
+session changes.
+
+Press **Fenrir+Control+Shift+X** to clear headers and use generic column numbers.
+Automatic header assignment stays off until you leave and re-enter table mode
+or the screen session changes; **Fenrir+X** can still set headers manually.
+Outside table mode, Fenrir+X places a text-selection mark instead.
 
 ## Speech and automatic reading