Fix typo

src/404.html

@@ -14,7 +14,7 @@
       <div class='d-f jc-c fxd-c'>
         <h1 class='mB-30 fw-900 lh-1 c-red-500' style="font-size: 60px;">404</h1>
         <h3 class='mB-10 fsz-lg c-grey-900 tt-c'>Oops Page Not Found</h3>
-        <p class='mB-30 fsz-def c-grey-700'>The page you are looking for doesnot exist or has been moved.</p>
+        <p class='mB-30 fsz-def c-grey-700'>The page you are looking for does not exist or has been moved.</p>
         <div>
           <a href='' type='primary' class='btn btn-primary'>Go to Home</a>
         </div>