Fix Linkedin social share link (mmistakes#4754)

Removed url encoding of the article link

_includes/social-share.html

@@ -7,5 +7,5 @@ <h4 class="page__share-title">{{ site.data.ui-text[site.locale].share_on_label |
 
   <a href="https://www.facebook.com/sharer/sharer.php?u={{ page.url | absolute_url | url_encode }}" class="btn btn--facebook" onclick="window.open(this.href, 'window', 'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" title="{{ site.data.ui-text[site.locale].share_on_label | default: 'Share on' }} Facebook"><i class="fab fa-fw fa-facebook" aria-hidden="true"></i><span> Facebook</span></a>
 
-  <a href="https://www.linkedin.com/shareArticle?mini=true&url={{ page.url | absolute_url | url_encode }}" class="btn btn--linkedin" onclick="window.open(this.href, 'window', 'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" title="{{ site.data.ui-text[site.locale].share_on_label | default: 'Share on' }} LinkedIn"><i class="fab fa-fw fa-linkedin" aria-hidden="true"></i><span> LinkedIn</span></a>
+  <a href="https://www.linkedin.com/shareArticle?mini=true&url={{ page.url | absolute_url }}" class="btn btn--linkedin" onclick="window.open(this.href, 'window', 'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" title="{{ site.data.ui-text[site.locale].share_on_label | default: 'Share on' }} LinkedIn"><i class="fab fa-fw fa-linkedin" aria-hidden="true"></i><span> LinkedIn</span></a>
 </section>