Merge branch 'docs-new-license-ui' into 'master'

Update license admin area images and instructions

See merge request gitlab-org/gitlab-ee!3737

doc/user/admin_area/license.md

@@ -20,20 +20,14 @@ License admin area.
 
 Otherwise, you can:
 
-1. Navigate manually to the **Admin Area** by clicking the wrench icon in the
-   upper right corner.
+1. Navigate manually to the **Admin Area** by clicking the wrench icon in the menu bar.
 
     ![Admin area icon](img/admin_wrench.png)
 
-1. And then going to the **License** tab.
+1. And then going to the **License** tab and click on **Upload New License**.
 
     ![License admin area](img/license_admin_area.png)
 
-
->**Note:**
-If you don't see the banner mentioned above, that means that either you are not
-logged in as admin or a license is already uploaded.
-
 ---
 
 If you've received a `.gitlab-license` file, you should have already downloaded