Document <backtab> key.

diff --git a/doc/manual.sgml.head b/doc/manual.sgml.head
index 95d7ddadae88aa113dbdfed01e9be6f5878ef44e..5b19f358d1e2e1919c36bd8cf9bac433f623dd88 100644 (file)
--- a/doc/manual.sgml.head
+++ b/doc/manual.sgml.head
@@ -933,6 +933,7 @@ In addition, <em/key/ may consist of:
 <tscreen><verb>
 \t              tab
 <tab>           tab
+<backtab>       backtab / shift-tab
 \r              carriage return
 \n              newline
 \e              escape