feat: add KnockKnock

docs/2023-06-25-useful-tools.html

@@ -456,6 +456,11 @@
           >https://github.com/alienator88/Pearcleaner</a
         >
       </li>
+      <li>
+        <a href="https://github.com/objective-see/KnockKnock"
+          >https://github.com/objective-see/KnockKnock</a
+        >
+      </li>
     </ul>
     <div class="markdown-heading">
       <h2 class="heading-element">Development</h2>

posts/2023-06-25-useful-tools.md

@@ -76,6 +76,7 @@ For fun
 - https://github.com/jordanbaird/Ice
 - https://sourceforge.net/projects/skim-app/
 - https://github.com/alienator88/Pearcleaner
+- https://github.com/objective-see/KnockKnock
 
 ## Development