Update the link-sharing wiki url

services/web/app/views/project/editor/share.pug

@@ -20,7 +20,7 @@ script(type='text/ng-template', id='shareProjectModalTemplate')
 					) #{translate('turn_on_link_sharing')}
 					span   
 					a(
-						href="/learn/Link_Sharing"
+						href="/learn/Kb/what_is_link_sharing"
 						target="_blank"
 					)
 						i.fa.fa-question-circle(
@@ -40,7 +40,7 @@ script(type='text/ng-template', id='shareProjectModalTemplate')
 					) #{translate('turn_off_link_sharing')}
 					span   
 					a(
-						href="/learn/Link_Sharing"
+						href="/learn/Kb/what_is_link_sharing"
 						target="_blank"
 					)
 						i.fa.fa-question-circle(
@@ -233,7 +233,7 @@ script(type="text/ng-template", id="makeTokenBasedModalTemplate")
 		h3 Enable link-sharing?
 	.modal-body.modal-body-share
 		p #{translate('turn_on_link_sharing_consequences')}
-		a(href="/learn/Link_Sharing" target="blank")
+		a(href="/learn/Kb/what_is_link_sharing" target="blank")
 			| #{translate('learn_more_about_link_sharing')}
 	.modal-footer
 		button.btn.btn-default(