Rename now to vercel (#1789)

Author: paulogdm

pages/guides/setup-namecheap-domain-vercel.mdx

@@ -38,7 +38,7 @@ There are two options available for domain verification:
 The [**Verify with TXT record**](#txt-record-verification) ensures a smooth [zero-downtime](/guides/zero-downtime-domain-migration/) migration.
 
 <Image
-  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-now/add-domain-with-nowcli.png`}
+  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-vercel/add-domain-with-nowcli.png`}
   width={1852/2.5}
   height={1182/2.5}
   oversize
@@ -54,7 +54,7 @@ Use the following command to list the set of nameservers needed for verification
 <Snippet dark text="now domains inspect <domain>" />
 
 <Image
-  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-now/inspect-domain.png`}
+  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-vercel/inspect-domain.png`}
   width={1852/2.5}
   height={1648/2.5}
   oversize
@@ -64,7 +64,7 @@ Use the following command to list the set of nameservers needed for verification
 Now, head over to [namecheap.com](https://www.namecheap.com), log in and click on **Domain List**.
 
 <Image
-  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-now/domain-list.png`}
+  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-vercel/domain-list.png`}
   width={2396/2.5}
   height={1629/2.5}
   oversize
@@ -76,7 +76,7 @@ Next, click on the **Manage** button on the domain you want to migrate to <Produ
 In the page you are directed to, scroll down to the **NAMESERVERS** section, click on the dropdown form and select **CustomDNS** as shown in the illustration below:
 
 <Image
-  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-now/custom-nameservers.png`}
+  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-vercel/custom-nameservers.png`}
   width={2396/2.5}
   height={1629/2.5}
   oversize
@@ -98,7 +98,7 @@ In your Namecheap **Domain List** dashboard, on the domain you want to migrate,
 Select `TXT Record` as the record type, add `_now` as the host, and the value you were given for the record when adding your domain. You can fetch the value again using the `now domains inspect <domain>` via the [<ProductShortName /> CLI](/docs/v2/getting-started/installation#now-cli).
 
 <Image
-  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-now/txtrecord.png`}
+  src={`${process.env.ASSETS}/guides/setup-namecheap-domain-vercel/txtrecord.png`}
   width={2396/2.5}
   height={1629/2.5}
   oversize