foot.ini: document all the new search.extend* bindings

doc/foot.ini.5.scd

@@ -945,13 +945,35 @@ scrollback search mode. The syntax is exactly the same as the regular
 	Deletes the **word after** the cursor. Default: _Mod1+d
 	Control+Delete_.
 
+*extend-char*
+	Extend current selection to the right, by one character. Default:
+	_Shift+Right_.
+
 *extend-to-word-boundary*
-	Extend current selection to the next word boundary. Default:
-	_Control+w_.
+	Extend current selection to the right, to the next word
+	boundary. Default: _Control+w Control+Shift+Right_.
 
 *extend-to-next-whitespace*
-	Extend the current selection to the next whitespace. Default:
-	_Control+Shift+w_.
+	Extend the current selection to the right, to the next
+	whitespace. Default: _Control+Shift+w_.
+
+*extend-line-down*
+	Extend current selection down one line. Default: _Shift+Down_.
+
+*extend-backward-char*
+	Extend current selection to the left, by one character. Default:
+	_Shift+Left_.
+
+*extend-backward-to-word-boundary*
+	Extend current selection to the left, to the next word
+	boundary. Default: _Control+Shift+Left_.
+
+*extend-backward-to-next-whitespace*
+	Extend the current selection to the left, to the next
+	whitespace. Default: _none_.
+
+*extend-line-up*
+	Extend current selection up one line. Default: _Shift+Up_.
 
 *clipboard-paste*
 	Paste from the _clipboard_ into the search buffer. Default:

foot.ini

@@ -176,8 +176,14 @@
 # delete-prev-word=Mod1+BackSpace Control+BackSpace
 # delete-next=Delete
 # delete-next-word=Mod1+d Control+Delete
-# extend-to-word-boundary=Control+w
+# extend-char=Shift+Right
+# extend-to-word-boundary=Control+w Control+Shift+Right
 # extend-to-next-whitespace=Control+Shift+w
+# extend-line-down=Shift+Down
+# extend-backward-char=Shift+Left
+# extend-backward-to-word-boundary=Control+Shift+Left
+# extend-backward-to-next-whitespace=none
+# extend-line-up=Shift+Up
 # clipboard-paste=Control+v Control+Shift+v Control+y XF86Paste
 # primary-paste=Shift+Insert
 # unicode-input=none