Update _includes/sxs/02-extending/part-two.html

Co-authored-by: mahoneycm <charlie.mahoney@bixal.com>

Author: James Mejia

_includes/sxs/02-extending/part-two.html

@@ -51,7 +51,7 @@ <h3 class="step">Import the new stylesheet into USWDS custom styles.</h3>
     <h4 class="filename"><span class="material-icons" aria-hidden="true">description</span> _theme/_uswds-theme-custom-styles.scss</h4>
 <pre class="blur">@use "uswds-core" as *;
 @forward "../assets/css/styles.scss";
-</pre><pre class="add">@forward "../assets/css/_my-card.scss";</pre>
+</pre><pre class="add">@forward "../_theme/components/_my-card.scss";</pre>
   </div>
   <p class="step-description">
     Once you've updated this file, you can save and close it. Since we've added our project Sass source directory to our gulpfile in the first part of the tutorial, it should already be compiling correctly!