docs: Improve the wl_registry protocol docs

Reword a few things, and add some details.

protocol/wayland.xml

@@ -98,36 +98,41 @@
       The global registry object.  The server has a number of global
       objects that are available to all clients.  These objects
       typically represent an actual object in the server (for example,
-      an input device) or they are singleton objects that provides
+      an input device) or they are singleton objects that provide
       extension functionality.
 
       When a client creates a registry object, the registry object
       will emit a global event for each global currently in the
-      registry.  Globals come and go as a result of device hotplugs,
+      registry.  Globals come and go as a result of device or
-      reconfiguration or other events, and the registry will send out
+      monitor hotplugs, reconfiguration or other events, and the
-      @global and @global_remove events to keep the client up to date
+      registry will send out global and global_remove events to
-      with the changes.  To mark the end of the initial burst of
+      keep the client up to date with the changes.  To mark the end
-      events, the client can use the wl_display.sync request
+      of the initial burst of events, the client can use the
-      immediately after calling wl_display.get_registry.
+      wl_display.sync request immediately after calling
+      wl_display.get_registry.
 
-      A client can 'bind' to a global object by using the bind
+      A client can bind to a global object by using the bind
-      request.  This creates a client side handle that lets the object
+      request.  This creates a client-side handle that lets the object
       emit events to the client and lets the client invoke requests on
       the object.
     </description>
 
     <request name="bind">
       <description summary="bind an object to the display">
-	Binds a new, client-created object to the server using @name as
+	Binds a new, client-created object to the server using the
-	the identifier.
+        specified name as the identifier.
       </description>
-      <arg name="name" type="uint" summary="unique number id for object"/>
+      <arg name="name" type="uint" summary="unique name for the object"/>
       <arg name="id" type="new_id"/>
     </request>
 
     <event name="global">
       <description summary="announce global object">
 	Notify the client of global objects.
+
+        The event notifies the client that a global object with
+        the given name is now available, and it implements the
+        given version of the given interface.
       </description>
       <arg name="name" type="uint"/>
       <arg name="interface" type="string"/>
@@ -136,10 +141,13 @@
 
     <event name="global_remove">
       <description summary="announce removal of global object">
-	Notify the client of removed global objects.  This event
+	Notify the client of removed global objects.
-	notifies the client that the global identifies by @name is no
+
-	longer available.  If the client bound to the global using the
+        This event notifies the client that the global identified
-	'bind' request, the client should now destroy that object.
+        by name is no longer available.  If the client bound to
+        the global using the bind request, the client should now
+        destroy that object.
+
 	The object remains valid and requests to the object will be
 	ignored until the client destroys it, to avoid races between
 	the global going away and a client sending a request to it.