gitdm: Fix sorting

Fixes: 3a3a85c5Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

docs/gitdm/companies/others

 6wind.com 6WIND
-cmss.chinamobile.com China Mobile
 active.by ActiveCloud
 aero.org Aerospace
 akamai.com Akamai
@@ -14,6 +13,7 @@ brightbox.co.uk Brightbox
 cisco.com Cisco
 citrix.com Citrix
 cloudwatt.com Cloudwatt
+cmss.chinamobile.com China Mobile
 codethink.co.uk Codethink
 cumulusnetworks.com Cumulus Networks
 dataductus.se Data Ductus