Step 1: Go to WHMCS admin > Settings > System Settings
Step 2: Now go to Product/Services
Step 3: By open Products/Services you will see product group click on edit button
Step 4: After clicking the edit button, you'll see the Product description box. Type your description in the field like this and click on save changes.
Note: The format should be remain the same, but you can change the content according to you.
<ul class="list">
<li>Starts with Demo: <b>1</b> site</li>
<li><b>3</b> environments/site</li>
<li><b>25K</b> visits/month</li>
<li><b>Ram:</b> 50GB bandwidth</li>
<li><b>CDN & SSl</b> included</li>
<li><b>Migrations</b> free</li>
<li><b>Page Performance</b> free</li>
<li>Powerful <b>tools</b> available</li>
</ul>
Step 5: Final result will be displayed like this
