Update index.html

16 talks to 17, and sposoring rephrasing

index.html

@@ -25,7 +25,7 @@ <h2><span class="count">6</span> workshops <br><span>on May 12<sup>th</sup></spa
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       <p class="preheading">to</p>
-      <h2><span class="count">16</span> talks <br><span>on May 13<sup>th</sup></span></h2>
+      <h2><span class="count">17</span> talks <br><span>on May 13<sup>th</sup></span></h2>
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     <p class="call-to-action"><a href="/topics/#talks">Learn more</a></p>
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@@ -111,7 +111,7 @@ <h3>Partners</h3>
         <a href="http://www.masterplanet.fi/"><img src="/sponsors/logos/masterplanet.png" alt="MP-Masterplanet OY"></a>
       </p>
    </ul>
-   <li class="active"><h3><a href="mailto:[email protected]">Interested to sponsor our future events?</a></h3>
+   <li class="active"><h3>Interested in sponsoring our future events? <a href="mailto:[email protected]">Contact us!</a></h3>
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