Updated doc

README.md

@@ -67,6 +67,7 @@ thumbnail mode are denoted via brackets:
 
     h,j,k,l      Pan image [move selection] left/down/up/right
                  (also with arrow keys)
+    H,J,K,L      Pan to left/bottom/top/right image edge
 
     <,>          Rotate image (counter-)clockwise by 90 degrees
 

sxiv.1

@@ -132,6 +132,18 @@ Pan image [move selection] up.
 .TP
 .BR l ", " Right
 Pan image [move selection] right.
+.TP
+.BR H
+Pan to left image edge.
+.TP
+.BR J
+Pan to bottom image edge.
+.TP
+.BR K
+Pan to top image edge.
+.TP
+.BR L
+Pan to right image edge.
 .SS Rotation
 .TP
 .B <