Nit: Remove redundant 'Step' in H3s

Author: RebeccaTamachiro

src/content/partials/cloudflare-for-platforms/get-started-per-hostname.mdx

@@ -7,7 +7,7 @@ import { Render, TabItem, Tabs } from "~/components"
 
 You need to perform the following steps for each custom hostname.
 
-### Step 1 — Plan for validation
+### 1. Plan for validation
 
 Before you create a hostname, you need to plan for:
 
@@ -24,7 +24,7 @@ Depending on which method you select for each of these options, additional steps
 
 :::
 
-### Step 2 — Create custom hostname
+### 2. Create custom hostname
 
 After planning for certification and hostname validation, you can create the custom hostname.