Update railway.md

src/guides/railway.md

@@ -9,18 +9,29 @@ tags: guides
 ## Getting the CNAME Record
 
 1. Navigate to the [dashboard](https://railway.app/dashboard)
-1. Navigate to the project.
-1. Navigate to the service.
-1. Switch to the **Settings** tab.
-1. Click on **+ Custom Domain** button.
-1. Enter the `is-a.dev` subdomain you want to use.
-1. Copy the **Value** field.
-1. Go to the [register site](https://register.is-a.dev).
-1. Choose **CNAME** record type from the dropdown menu.
-1. Choose your desired subdomain.
-1. Enter the value from clipboard in the **Record Value** field.
-1. Click on the **Submit Query** button.
-1. Wait for your pull request to be merged and the DNS records to update.
+2. Navigate to the project.
+3. Navigate to the service.
+4. Switch to the **Settings** tab.
+5. Click on **+ Custom Domain** button.
+6. Enter the `is-a.dev` subdomain you want to use.
+7. Copy the **Value** field.
+8. For the domain, make the json like this:
+```json
+{
+  "owner": {
+    "username": "your-username",
+    "email": "your-email"
+  },
+  "record": {
+    "CNAME": "is-a-dev-docs.pages.dev"
+  }
+}
+```
+9. After you have made the file, you should make a pull request.
+!!!
+**Adding the website preview is neccessary**, since the CNAME value Railway gives you doesn't actually show you the website you are running.
+!!!
+
 
 **If the PR has been merged, the DNS records will be updated in a few minutes.**
 **If the PR has been merged but the DNS records haven't updated and you have waited 48 hours, open a GitHub issue or a help thread in the is-a.dev discord server.**