Bug 27151: [imports]: Poor grammar in the 3.1 Import Dependent section

Adopted the suggestion.
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27151

spec/imports/index.html

@@ -150,9 +150,9 @@ <h2 id="terminology">Terminology</h2>
 
 <h3 id="import-dependent">Import Dependent</h3>
 
-<p>To track <a href="#requesting-import">requested</a> imports, each document has an <dfn id="dfn-import-link-list">import link list</dfn>, each of whose item is consist of <dfn id="dfn-import-link-link">link</dfn>, the <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-link-element">link</a></code> element and <dfn id="import-link-list-location">location</dfn>, a URL.
+<p>To track <a href="#requesting-import">requested</a> imports, each document has an <dfn id="dfn-import-link-list">import link list</dfn>. Each of its item consists of <dfn id="dfn-import-link-link">link</dfn>, a <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#the-link-element">link</a></code> element and <dfn id="import-link-list-location">location</dfn>, a URL.
 Also, the item is optionally <dfn id="dfn-import-link-list-branch">marked as branch</dfn>.
-The list is empty at beginning and the item is added as <a href="#dfn-import-request">import request</a> algorithm specifies.</p>
+The list is initially empty, and items are added to it as specified by the <a href="#dfn-import-request">import request</a> algorithm.</p>
 
 <p>Each <a href="#dfn-imported-document">imported document</a> has an <dfn id="dfn-import-parent">import parent</dfn>: If the <a href="#dfn-import-link-list">import link list</a> of document <var>A</var> contains a <a href="#dfn-import-link-list-branch">branch</a> item whose <a href="#import-link-list-location">location</a> points document <var>B</var>, <var>A</var> is an <a href="#dfn-import-import-parent">import parent</a> of <var>B</var>.</a>