some simplifications to intro in dwm.h

dwm.h

@@ -4,32 +4,32 @@
  *
  * dynamic window manager is designed like any other X client as well. It is
  * driven through handling X events. In contrast to other X clients, a window
- * manager like dwm selects for SubstructureRedirectMask on the root window, to
- * receive events about window appearance and disappearance.  Only one X
- * connection at a time is allowed to select for this event mask.
+ * manager selects for SubstructureRedirectMask on the root window, to receive
+ * events about window (dis-)appearance.  Only one X connection at a time is
+ * allowed to select for this event mask.
  *
- * Calls to fetch an X event from the X event queue connection are blocking.
- * Due reading status text from standard input, a select-driven main loop has
- * been implemented which selects for reads on the X connection and
- * STDIN_FILENO to handle all data smoothly and without busy-loop quirks. The
- * event handlers of dwm are organized in an array which is accessed whenever a
- * new event has been fetched. This allows event dispatching in O(1) time.
+ * Calls to fetch an X event from the event queue are blocking.  Due reading
+ * status text from standard input, a select-driven main loop has been
+ * implemented which selects for reads on the X connection and STDIN_FILENO to
+ * handle all data smoothly. The event handlers of dwm are organized in an
+ * array which is accessed whenever a new event has been fetched. This allows
+ * event dispatching in O(1) time.
  *
  * Each child of the root window is called a client, except windows which have
  * set the override_redirect flag.  Clients are organized in a global
  * doubly-linked client list, the focus history is remembered through a global
  * stack list. Each client contains an array of Bools of the same size as the
  * global tags array to indicate the tags of a client.  For each client dwm
- * creates a small title window which is resized whenever the WM_NAME or
- * _NET_WM_NAME properties are updated or the client is resized.
+ * creates a small title window, which is resized whenever the (_NET_)WM_NAME
+ * properties are updated or the client is moved/resized.
  *
  * Keys and tagging rules are organized as arrays and defined in the config.h
  * file. These arrays are kept static in event.o and tag.o respectively,
  * because no other part of dwm needs access to them.  The current mode is
- * represented by the arrange function pointer which wether points to dofloat
+ * represented by the arrange function pointer, which wether points to dofloat
  * or dotile. 
  *
- * To understand everything else, start with reading main.c:main().
+ * To understand everything else, start reading main.c:main().
  */
 
 #include "config.h"