each model once (i.e. it will skip files, if there are clashes).
</p>
<p>
- After you have done modifications to a file, it's a good idea to validate it. This can
+ After you have done modifications to a file, it is a good idea to validate it. This can
be done using the tool <i>xmllint</i> as shown below:
</p>
<pre><code class="bash">