add p tag

layouts/blog/single.html

@@ -14,7 +14,7 @@
           </div>
         </div>
         <span class="line"></span>
-        {{ .Params.introduction | safeHTML }}
+        <p>{{ .Params.introduction | safeHTML }}</p>
       <br>
       <div class="question-box">
         <p>