Update tweet link

_includes/header.html

@@ -3,7 +3,7 @@
     <h1 class="mv0 normal f3 lh-copy black-90">Feather <span class="f5 black-60">v{{ site.data.package.version }}</span></h1>
 
     <ul class="list mv0 pl0 flex">
-      <li class="dn dib-ns"><a class="no-underline color-inherit dim" href="https://twitter.com/intent/tweet?text=Feather%20-%20Simply%20beautiful%20open%20source%20icons%20by%20%40colebemis%20feather.netlify.com" target="_blank">Tweet</a></li>
+      <li class="dn dib-ns"><a class="no-underline color-inherit dim" href="https://twitter.com/intent/tweet?text=Feather%20-%20Simply%20beautiful%20open%20source%20icons%20by%20%40colebemis%20https://feather.netlify.com" target="_blank">Tweet</a></li>
       <li class="dn dib-ns ml4"><a class="no-underline color-inherit dim" href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=G6CPFZ6PQRZW8&lc=US&item_name=Feather&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted" target="_blank">Donate</a></li>
       <li class="ml4"><a class="no-underline color-inherit dim" href="https://github.com/colebemis/feather" target="_blank">GitHub</a></li>
     </ul>