[static-web] cgit: Add a banner on git.g.o regarding modules migration

[Tom Tryfonidis <tomtryf src gnome org>]

commit 42d786133afef69d1ea0dcf7ce4af6d89fc1b629
Author: Tom Tryfonidis <tomtryf gnome org>
Date:   Wed Feb 14 22:13:38 2018 +0200

    cgit: Add a banner on git.g.o regarding modules migration
    
    Fixes https://gitlab.gnome.org/Infrastructure/GitLab/issues/128

 cgit/git.gnome.org/gnome.header |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/cgit/git.gnome.org/gnome.header b/cgit/git.gnome.org/gnome.header
index 8a2a5df..5d52615 100644
--- a/cgit/git.gnome.org/gnome.header
+++ b/cgit/git.gnome.org/gnome.header
@@ -25,6 +25,16 @@
             </div>
         </nav>
     </header>
+    <div class="container">
+        <div class="row">
+            <div class="col-xs-12">
+                <div class="alert alert-info" role="alert">
+                    <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span 
aria-hidden="true">&times;</span></button>
+                    GNOME is migrating to GitLab; some modules are no longer listed here and are at <a 
href="https://gitlab.gnome.org"; target="blank" class="alert-link">gitlab.gnome.org</a> instead.
+                </div>
+            </div>
+        </div>
+    </div>
     <div class="gnome-content">
         <div class="container">
             <div class="row">