Clarify multiple fields in IP restrictions

[mirnawong1]

Contributions

• [X] I have read the contribution docs, and understand what's expected of me.

Link to the page on docs.getdbt.com requiring updates

Motivated by this internal slack thread, there are a couple of things to update in this doc:

• It's not entirely explicit that the users can add multiple IP ranges by clicking the 'Add IP range' button to create a new text field. We should make it a bit more explicit in the docs.
• Another small issue is this sentence doesn't link to Enabling restrictions, which it should.
• The 'Enabling restrictions' header should also be sentence case e.g. Enabling restrictions and not Enabling Restrictions

What part(s) of the page would you like to see updated?

This is the page: https://docs.getdbt.com/docs/cloud/secure/ip-restrictions#allowing-ips and this is the specific text that might benefit from clarification or a screenshot:

### Allowing IPs

To add an IP to the allowlist, from the **IP Restrictions** page:

1.  Click **edit**
2. Click **Add Rule**
3. Add name and description for the rule
    - For example, Corporate VPN CIDR Range
4. Select **Allow**
5. Add the ranges in the CIDR notation
    - For example, 1.1.1.1/8
    - You can add multiple ranges in the same rule.
6. Click **Save**

Additional information

No response

[mirnawong1]

I've set the priority to medium/high as it relates to set up instructions that affect users today and in the future.