Updated doc: dragging with button2, -g option

README.md

@@ -32,13 +32,12 @@ sxiv supports the following command-line options:
 
     -d           scale all images to 100%, but fit large images into window
     -f           start in fullscreen mode
+    -g GEOMETRY  set window position and size
+                 (see section GEOMETRY SPECIFICATIONS of X(7))
     -p           pixelize, i.e. turn off image anti-aliasing
     -s           scale all images to fit into window
     -v           print version information and exit
     -W           enable printing of warnings
-    -w WIDTHxHEIGHT
-             set window width to WIDTH and height to HEIGHT
-             (if HEIGHT is omitted, height is also set to WIDTH)
     -Z           same as `-z 100'
     -z ZOOM      scale all images to current zoom level, use ZOOM at startup
 
@@ -61,6 +60,7 @@ Use the following keys to control sxiv:
 Additionally, sxiv can be controlled via the following mouse commands:
 
     Button1           Go to the next image
+    Button2           Drag image with mouse while keeping it pressed
     Button3           Go to the previous image
     ScrollUp          Pan image up
     ScrollDown        Pan image down

sxiv.1

@@ -24,6 +24,11 @@ Scale all images to 100%, but fit large images into window.
 .B \-f
 Start in fullscreen mode.
 .TP
+.BI "\-g " GEOMETRY
+Set window position and size. See section GEOMETRY SPECIFICATIONS of X(7) for
+more information on
+.IR GEOMETRY .
+.TP
 .B \-h
 Print brief usage information to standard output and exit.
 .TP
@@ -39,16 +44,6 @@ Print version information to standard output and exit.
 .B \-W
 Enable printing of warnings to standard error stream.
 .TP
-.BI "\-w " WIDTH x HEIGHT
-Set window width to
-.I WIDTH
-and height to
-.IR HEIGHT .
-If
-.I HEIGHT
-is omitted, height is also set to
-.IR WIDTH .
-.TP
 .B \-Z
 The same as `-z 100'.
 .TP
@@ -124,6 +119,9 @@ Toggle anti-aliasing.
 .B Button1
 Go to the next image.
 .TP
+.B Button2
+Drag the image with the mouse while keeping this button pressed down.
+.TP
 .B Button3
 Go to the previous image.
 .SS Zooming