Minor wording addition.

Author: sideshowbarker

README.md

@@ -4,7 +4,11 @@ The Nu Markup Checker is the backend behind [http://validator.nu][1],
 [http://html5.validator.nu][2], [http://validator.w3.org/nu/][3], and the HTML5
 facet of the [W3C Validator][4]. Its source code is available from [a set of
 repositories hosted at github][5], as is `vnu.jar`, a portable standalone
-version.
+version for either batch validation of HTML documents directly from the command
+line and from other scripts/apps or as a simple stand-alone HTTP server that
+provides a service for browser-based checking of HTML documents over the
+Web—similar to [http://html5.validator.nu/][2],
+[http://validator.w3.org/nu/][3], etc.
 
    [1]: http://validator.nu
    [2]: http://html5.validator.nu

index.html

@@ -13,7 +13,14 @@ <h1>The Nu Markup Checker</h1>
 
     Its source code is available from
     <a href="https://github.com/validator/">a set of repositories hosted at github</a>,
-    as is <code>vnu.jar</code>, a portable standalone version.
+    as is <code>vnu.jar</code>, a portable standalone version for either
+    batch validation of HTML documents directly
+    from the command line and from other scripts/apps or as a simple
+    stand-alone HTTP server that provides a service for browser-based checking
+    of HTML documents over the Web—similar to
+    <a href="http://html5.validator.nu">http://html5.validator.nu/</a>,
+    <a href="http://validator.w3.org/nu/">http://validator.w3.org/nu/</a>,
+    etc.
 
     <p>
     The easiest way to do things with the Nu Markup Checker on your own is to