Update README.md

Updated readme as h3 of the Steps wasn't working earlier! @Atif0604

Author: harshita2216

Movie-Search-App/README.md

@@ -13,7 +13,8 @@
 <ul>
   <li>TMDB API</li>
 </ul>
-#### Steps to Use:
+
+### Steps to Use:
 ---
 
 - Download or clone the repository