Adding missing svg assets (#6617)

loudness/patterns/illustration-1.php

@@ -7,6 +7,6 @@
 ?>
 <!-- wp:image {"sizeSlug":"full","linkDestination":"none"} -->
 <figure class="wp-block-image size-full">
-	<img src="<?php echo esc_url( get_stylesheet_directory_uri() ) . '/assets/illustrations/illustration_1.jpg'; ?>" />
+	<img src="<?php echo esc_url( get_stylesheet_directory_uri() ) . '/assets/illustrations/illustration-1.jpg'; ?>" />
 </figure>
 <!-- /wp:image -->

loudness/patterns/illustration-2.php

@@ -1,12 +1,12 @@
 <?php
 /**
  * Title: Illustration 2
- * Slug: loudness/illustration_b2
+ * Slug: loudness/illustration_2
  * Categories: illustrations
  */
 ?>
 <!-- wp:image {"sizeSlug":"full","linkDestination":"none"} -->
 <figure class="wp-block-image size-full">
-	<img src="<?php echo esc_url( get_stylesheet_directory_uri() ) . '/assets/illustrations/illustration_2.jpg'; ?>" />
+	<img src="<?php echo esc_url( get_stylesheet_directory_uri() ) . '/assets/illustrations/illustration-2.jpg'; ?>" />
 </figure>
 <!-- /wp:image -->