Updated Redirect URL to Authentication URL

Author: Priyanka-Deriv

docs/guides/oauth2/index.md

@@ -31,10 +31,10 @@ For more information on OAuth2, [see this guide](https://aaronparecki.com/oauth-
 
 ### How to use OAuth authorisation
 
-1. Specify the URL that will be used as the **OAuth Redirect URL** on the app registration page in the **Website URL field**.
+1. Specify the URL that will be used as the **OAuth Authentication URL** on the app registration page in the **Website URL field**.
 
 2. Add a login button on your website or app and direct users to `https://oauth.deriv.com/oauth2/authorize?app_id=your_app_id` where your_app_id is the ID of your app.
 
-3. Once a user signs up, they will be redirected to the URL that you entered as the **Redirect URL**. This URL will have arguments added to it with the user's session tokens, and will look similar to: `https://[YOUR_WEBSITE_URL]/redirect/?acct1=cr799393& token1=a1-f7pnteezo4jzhpxclctizt27hyeot&cur1=usd& acct2=vrtc1859315& token2=a1clwe3vfuuus5kraceykdsoqm4snfq& cur2=usd&state=`
+3. Once a user signs up, they will be redirected to the URL that you entered as the **Authentication URL**. This URL will have arguments added to it with the user's session tokens, and will look similar to: `https://[YOUR_WEBSITE_URL]/redirect/?acct1=cr799393& token1=a1-f7pnteezo4jzhpxclctizt27hyeot&cur1=usd& acct2=vrtc1859315& token2=a1clwe3vfuuus5kraceykdsoqm4snfq& cur2=usd&state=`
 
 4. In the parameters of the URL, you will see all the accounts and the session token for each account. Pass these tokens to the Authorize API call in order to perform actions on behalf of the account.