✏️ Typo : Reword the phrase present in about section

This typo fix reworded the phrase in about section and added links for easy navigation.

Contributor: @vcavanna 
Closes: #5

index.html

@@ -15,7 +15,7 @@
     <div class="home">
       <div class="container">
         Hi, my name is <span>Your Name</span> <br />I'm <span id="role"> </span>
-        <a class="button" href="#about">Know more</a>
+        <a class="button" href="#about">Learn more</a>
       </div>
     </div>
     <div class="px50"></div>
@@ -31,9 +31,9 @@
           <div class="text">Hi, I'm a developer</div>
           <br />
           <div class="textMain">
-            I design websites. That's the long and short of it. UI and UX,
-            Sketch, Design, and pretty decent HTML and CSS — with Javascript and
-            that nice dabble with Java.
+            I design websites with user-friendly UI and UX,
+            visualizing with <a href="https://www.sketch.com/">Sketch</a> and other design tools.
+            I'm comfortable with many front-end languages including HTML, CSS, Javascript and Java.
           </div>
         </div>
         <div class="rightC">