Ensure the text has better clarity for RWS instructions

[gagan0123]

On the RWS page, once we generate the JSON resources, the following instructions need to be more precise:

Step 1:
From:

Add the .well-known file to the primary domain with the following content:

To:

Add the file related-website-set.json in the directory .well-known of the primary domain with the following content:

Step 2:
From:

Add the .well-known file to all the other domains in your set with the following content:

To:

Add the file related-website-set.json in the directory .well-known of all the other domains in your set with the following content:

Screenshot

[mayan-000]

Merged to main.