Раздел помощи: How to add Steam to your profile
To show your Steam information in your profile, you will need to set up a custom url for your account.
1. Go to Steam Community and log in to your account.
2. On the right column, click "Edit my profile".
3. Under the basic info and above your avatar, enter in what you want for your custom URL.
4. Edit your profile on this forum and enter in what you have set for your custom URL and save.
Done! Assuming that the site administrator has everything set up on their end, when you visit your profile, you should see your information!