Add trailing slash to redirected update links - part 1

sites/marketing/source/releases/posts/2015-11-11-gitlab-8-dot-1-dot-4-released.html.md

@@ -36,7 +36,7 @@ file](http://doc.gitlab.com/omnibus/update/README.html).
 ## Updating
-To update, check out our [update page](/update).
+To update, check out our [update page](/update/).
 ## Enterprise Edition

sites/marketing/source/releases/posts/2015-12-02-gitlab-8-dot-2-dot-2-released.html.md

@@ -56,7 +56,7 @@ sudo -u git -H git checkout v2.6.8
 ## Updating
-To update, check out our [update page](/update).
+To update, check out our [update page](/update/).
 ## Enterprise Edition

sites/marketing/source/releases/posts/2015-12-10-gitlab-8-dot-2-dot-3-released.html.md

@@ -68,7 +68,7 @@ file](http://doc.gitlab.com/omnibus/update/README.html).
 ## Updating
-To update, check out our [update page](/update).
+To update, check out our [update page](/update/).
 ## Enterprise Edition

sites/marketing/source/releases/posts/2015-12-28-gitlab-8-dot-3-dot-1-released.html.md

@@ -43,7 +43,7 @@ file](http://doc.gitlab.com/omnibus/update/README.html).
 ## Updating
-To update, check out our [update page](/update).
+To update, check out our [update page](/update/).
 ## Enterprise Edition

sites/marketing/source/releases/posts/2015-12-29-gitlab-8-dot-3-dot-2-released.html.md

@@ -36,7 +36,7 @@ file](http://doc.gitlab.com/omnibus/update/README.html).
 ## Updating
-To update, check out our [update page](/update).
+To update, check out our [update page](/update/).
 ## Enterprise Edition