Merge branch 'mrchrisw/docs/shibboleth' into 'master'

Fix wording around NGINX Shibboleth setup

![image](/uploads/de69ad7a056083ab4ca337d9cacad6e2/image.png)

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![image](/uploads/bd8081aa0e3a7bd0568267c4a485df5d/image.png)



See merge request !5034

doc/integration/shibboleth.md

@@ -2,7 +2,7 @@
 
 This documentation is for enabling shibboleth with omnibus-gitlab package.
 
-In order to enable Shibboleth support in gitlab we need to use Apache instead of Nginx (It may be possible to use Nginx, however I did not found way to easily configure Nginx that is bundled in omnibus-gitlab package). Apache uses mod_shib2 module for shibboleth authentication and can pass attributes as headers to omniauth-shibboleth provider.
+In order to enable Shibboleth support in gitlab we need to use Apache instead of Nginx (It may be possible to use Nginx, however this is difficult to configure using the bundled NIGNX provided in the omnibus-gitlab package). Apache uses mod_shib2 module for shibboleth authentication and can pass attributes as headers to omniauth-shibboleth provider.
 
 
 To enable the Shibboleth OmniAuth provider you must: