fix: typo

Author: Le-Caignec

src/overview/helloWorld/3-buildIApp.md

@@ -43,7 +43,7 @@ Before getting started, make sure you have:
 </div>
 
 <div class="bg-gradient-to-r from-fuchsia-400/10 to-fuchsia-400/5 rounded-[6px] p-6 border-l-4 border-fuchsia-700 mb-6">
-  <p class="m-0!">Don't worry! All secrets used in this tutorial stay on your machine and aren’t shared with anyone. You’ll only need them to run the <code>iApp run</code> command.</p>
+  <p class="m-0!">Don't worry! All secrets used in this tutorial stay on your machine and aren’t shared with anyone. You’ll only need them to run the <code>iapp run</code> command.</p>
 </div>
 
 ## 🚀 Types of iApps You Can Build