Slightly changed the doc after merging remote changes

README.md

@@ -115,8 +115,8 @@ The following additional key commands are available in *image mode*:
     -            Zoom out
     =            Set zoom level to 100%, or [count]%
     w            Fit image into window
-    e            Fit image to window's width
-    E            Fit image to window's height
+    e            Fit image width to window width
+    E            Fit image height to window height
 
     h,j,k,l      Pan image 1/5 of window width/height or [count] pixels
                  left/down/up/right (also with arrow keys)

sxiv.1

@@ -199,10 +199,10 @@ Set zoom level to 100%, or
 Set zoom level to fit image into window.
 .TP
 .B e
-Set zoom level to fit image into the window's width.
+Set zoom level to fit image width to window width.
 .TP
 .B E
-Set zoom level to fit image into the window's height.
+Set zoom level to fit image height to window height.
 .SS Panning
 .TP
 .BR h ", " Left