Apply suggestions from code review

Co-authored-by: Ted Thibodeau Jr <[email protected]>

Author: pchampin

spec/index.html

@@ -296,10 +296,10 @@ <h3>RDF Vocabularies and Namespace IRIs</h3>
       </tr>
     </table>
 
-    <p>In some serialization formats it is common
-      to associate some [=namespace IRIs=] to arbitrary [=namespace prefixes=],
-      and to abbreviate <a>IRIs</a> that start with one of those <a>namespace IRIs</a> by using the corresponding <a>namespace prefix</a>,
-      in order to assist readability.
+    <p>In some serialization formats, it is common
+      to associate some [=namespace IRIs=] with arbitrary [=namespace prefixes=],
+      and to improve readability by abbreviating <a>IRIs</a> that start with one of those <a>namespace IRIs</a>
+      by using the corresponding <a>namespace prefix</a>.
       For example,
       based on the prefix mapping in <a href="#tab-vocab-ns"></a>,
       the IRI <code>http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral</code>