Clearer and more succinct explanation of slugs.

content/docs/content/urls/contents.lr

@@ -8,27 +8,19 @@ Lektor's URLs in general mirror what happens on the file system as much as
 possible.  There are however various cases in which this behavior can be
 changed.
 
-## A URL Made of Slugs
+## A URL Is Composed of Slugs
 
-A URL in Lektor is built of slugs.  What are slugs?  Slugs are parts of the
-URL which can be customized.  They are roughly speaking something like a
-file name.  For instance `foo-bar` can be a slug in `/foo-bar/`.  The default
-slug of a page is the ID of the page.  So if you have a page called
-`/foo/bar/contents.lr` then the default slug is `bar`.  As you can see the
-full URL is comprised of its own slug concatenated with all the slugs of
-all parents.
+Each page in Lektor is associated with a string called a *slug*. The full 
+URL of a page is its own slug concatenated with the slug of each its parents. 
 
-Can a slug contain slashes?  Yes indeed it can.  A slug is free to contain
-any slashes if it wants and they will be handled just as you expect.  So it's
-perfectly valid for a page to have `2015/5/demo` as slug.  What's not possible
-is for a page to pretend that it belongs to a different parent.  The parent
-paths are always added to it.  So once a page has a parent page `/foo` 
-its URL path will always begin with the URL path of the page `foo`.
+The default slug is the ID of the page. So the page 
+`content/foo/bar/contents.lr` has the default slug `bar`, its parent has the
+default slug `foo`, and its default URL would be `/foo/bar/'. 
 
 ## Slug Customization
 
-As mentioned slugs can be customized.  There are three systems that control
-what the slug looks like:
+Slugs can be customized. The can even contain slashed (see below). There are
+three systems that control what the slug looks like:
 
 ### Folder Name
 
@@ -55,6 +47,16 @@ of the children below it.  This for instance can be used to automatically add
 the date of a blog post into the slug.  For more information about this
 feature see [Children & Pagination :ref](../../models/children/).
 
+## Slugs Containing Slashes 
+
+Slugs can indeed contain slashes. It's perfectly valid for a page to have 
+`2015/5/demo` as slug, and it will still be incorporated into URLs as described
+above.  What's not possible is for a page to pretend that it belongs to a 
+different parent.  The parent paths are always added to it.  So once a page 
+has a parent page `/foo` its URL path will always begin with the URL path of 
+the page `foo`.
+
+
 ## Extensions and File Types
 
 The default behavior for a page is to build into a hidden `index.html` file.