fix: Format example blocks

books/core/38.html

@@ -27,7 +27,7 @@
   A Check is presented as a formula indicating which dice you have to roll and
   add up together. Checks always require you to roll exactly two dice.
 </p>
-<p>
+<p class="example">
   <strong>Example:</strong> An <code>【INS + WLP】</code> Check performed by a
   character with d6 Insight and d10 Willpower will result in that character
   rolling a d6 and a d10 and adding them together, thus generating a total
@@ -37,7 +37,7 @@
   Some Checks will also require you to add or subtract a certain number from the
   total you rolled:
 </p>
-<p>
+<p class="example">
   <strong>Example:</strong> A Character performing a
   <code>【MIG + MIG】+5</code> Check will roll their Might die twice and then
   add 5 to the Result.