added a trailing '.' to shortcut descriptions in dwm(1)

dwm.1

@@ -37,31 +37,31 @@ Zoom
 .B window
 to the 
 .B master
-column
+column.
 .TP
 .B Mod1-h
 Focus previous
-.B tag
+.B tag.
 .TP
 .B Mod1-j
 Focus next
-.B window
+.B window.
 .TP
 .B Mod1-k
 Focus previous
-.B window
+.B window.
 .TP
 .B Mod1-l
 Focus next
-.B tag
+.B tag.
 .TP
 .B Mod1-m
 Maximize current
-.B window
+.B window.
 .TP
 .B Mod1-[0..n]
 Focus
-.B nth tag
+.B nth tag.
 .TP
 .B Mod1-space
 Toggle between
@@ -69,41 +69,41 @@ Toggle between
 and
 .B floating
 mode (affects
-.BR "all windows" )
+.BR "all windows" ).
 .TP
 .B Mod1-Shift-[0..n]
 Apply
 .B nth tag
 to current
-.B window
+.B window.
 .TP
 .B Mod1-Shift-q
 Quit
-.B dwm
+.B dwm.
 .TP
 .B Mod1-Shift-Return
 Start
-.B terminal
+.B terminal.
 .TP
 .B Mod1-Control-[0..n]
 Append
 .B nth tag
 to current
-.B window
+.B window.
 .TP
 .B Mod1-Button1
 Moves current
 .B window
-while dragging
+while dragging.
 .TP
 .B Mod1-Button2
 Lowers current
-.B window
+.B window.
 .TP
 .B Mod1-Button3
 Resizes current
 .B window
-while dragging
+while dragging.
 .SH CUSTOMIZATION
 .B dwm
 is customized by creating a custom config.h and (re)compiling the source