Updates README.md.

Signed-off-by: Vlad Losev <vlad@losev.com>

charts/argo-workflows/README.md

@@ -331,7 +331,7 @@ Fields to note:
 | server.sso.issuerAlias | string | `""` | Alternate root URLs that can be included for some OIDC providers |
 | server.sso.rbac.enabled | bool | `true` | Adds ServiceAccount Policy to server (Cluster)Role. |
 | server.sso.rbac.secretWhitelist | list | `[]` | Whitelist to allow server to fetch Secrets |
-| server.sso.redirectUrl | string | `"https://argo/oauth2/callback"` |  |
+| server.sso.redirectUrl | string | `""` |  |
 | server.sso.scopes | list | `[]` | Scopes requested from the SSO ID provider |
 | server.sso.sessionExpiry | string | `""` | Define how long your login is valid for (in hours) |
 | server.sso.userInfoPath | string | `""` | Specify the user info endpoint that contains the groups claim |