Added external reference doc + minor changes

Author: ashoknayak777

docs/user-guide/global-configurations/okta.md

@@ -24,7 +24,7 @@ Once your Okta org is set up, create an app integration on Okta to get a Client
 OIDC stands for OpenID Connect. [Click here](https://www.okta.com/openid-connect/) to read more.
 {% endhint %}
 
-4. Select an application type (Web, Single Page, or Native), and click **Next**.
+4. Select **Web** as the application type and click **Next**.
 
 5. On the **App Integration** page:
     * Give a name to your application.
@@ -49,7 +49,7 @@ OIDC stands for OpenID Connect. [Click here](https://www.okta.com/openid-connect
 1. Go to the Global Configurations → SSO Login Services → OIDC.
 2. In the **URL** field, enter the Devtron application URL (a valid https link) where it is hosted.
 3. Under `Configuration` tab, locate the config object, and provide the `clientID` and `clientSecret` of the app integration you created on Okta.
-4. Add a key `insecureSkipEmailVerified: true`.
+4. Add a key `insecureSkipEmailVerified: true`. Note that this key is only required for Okta SSO. For other types of OIDC SSO, refer [OIDC supported configurations](https://dexidp.io/docs/connectors/oidc/).
 5. Provide `issuer` value as `https://${yourOktaDomain}/oauth2/default`. Replace `${yourOktaDomain}` with your domain on Okta as shown in the video.
 6. For providing `redirectURI` or `callbackURI` registered with the SSO provider, you can either select `Configuration` or `Sample Script`. Note that the redirect URI is already given in the helper text (as seen in the previous section).
 7. Click **Save** to create and activate Okta SSO login.