[REFACTOR] index.html

Corrected some spellings in welcome-msg

Author: Shubhamag12

index.html

@@ -44,7 +44,7 @@
             <h1>DevCans for&nbsp;<span class="txt-type" data-wait="3000" data-words='["Developers", "Coders", "Learners"]'></span>
             </h1>
             <h2>Welcome To DevCans</h2>
-            <p class="welcome-msg">To foster coding and developement skills as well as healty competitive environment.</p>
+            <p class="welcome-msg">To foster coding and development skills as well as healthy competitive environment.</p>
         </div>
     </div>