Merge pull request bitly#444 from Starefossen/patch-1

Clarify that GitHub team option in README

Author: jehiah

README.md

@@ -98,7 +98,7 @@ The Azure AD auth provider uses `openid` as it default scope. It uses `https://g
 The GitHub auth provider supports two additional parameters to restrict authentication to Organization or Team level access. Restricting by org and team is normally accompanied with `--email-domain=*`
 
     -github-org="": restrict logins to members of this organisation
-    -github-team="": restrict logins to members of any of these teams, separated by a comma
+    -github-team="": restrict logins to members of any of these teams (slug), separated by a comma
 
 If you are using GitHub enterprise, make sure you set the following to the appropriate url:
 
@@ -187,7 +187,7 @@ Usage of oauth2_proxy:
   -email-domain value: authenticate emails with the specified domain (may be given multiple times). Use * to authenticate any email
   -footer string: custom footer string. Use "-" to disable default footer.
   -github-org string: restrict logins to members of this organisation
-  -github-team string: restrict logins to members of this team
+  -github-team string: restrict logins to members of any of these teams (slug), separated by a comma
   -google-admin-email string: the google admin to impersonate for api calls
   -google-group value: restrict logins to members of this google group (may be given multiple times).
   -google-service-account-json string: the path to the service account json credentials