[TASK][DOC] Instructions with DirectSSO for typo3.org

Change-Id: Ied353ff7ab32bf8418af9620067a4cdf82e4816e
Reviewed-on: http://review.typo3.org/41730

Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>

nginx/files/index.html

+Currently in maintenance ... back online as soon as possible. Thanks
\ No newline at end of file

nginx/templates/virtualhost.conf.j2

@@ -22,6 +22,11 @@ server {
         root {{ pootle_virtualenv }}/lib/python2.7/site-packages/pootle/;
     }
 
+    # Uncomment if you are using DirectSSO
+    #location /accounts/login {
+    #    rewrite ^(.*)$ http://typo3.org/login/translation/ redirect;
+    #}
+
     location ^~ /l10n_ter/ {
         root /var/www/{{ domain }}/public/;
         autoindex on;

typo3/files/directsso/INSTALL.rst

@@ -31,4 +31,10 @@ Install the DirectSSO authentication back-end
 
 5. Edit :file:`directsso/settings.py` to suit your needs.
 
-6. Restart your server to take the changes into account
+6. Redirect the Pootle authentication page to TYPO3::
+
+       location /accounts/login {
+           rewrite ^(.*)$ http://typo3.org/login/translation/ redirect;
+       }
+
+7. Restart your server to take the changes into account