Added "?tryitnow" to first get started button (#6400)

Button in above the fold hero area did not include this. We use it to track conversions for these button clicks in GA and on ad networks.

website/views/pages/landing.ejs

@@ -7,7 +7,7 @@
           <h4>One agent, any platform, up-to-the-minute data</h4>
           <p>Fleet allows you to harness the power of osquery to stream accurate, real-time data from all of your devices. It’s easy to deploy at scale, granular and open source.</p>
           <div class="flex-row row justify-content-around mx-md-0 mx-4 pt-2">
-            <a href="/get-started" class="btn btn-primary col-md-6 col-12">Try it out</a>
+            <a href="/get-started?tryitnow" class="btn btn-primary col-md-6 col-12">Try it out</a>
             <a purpose="demo-btn-white" style="color:#F9FAFC;" class="btn col-md-6 col-12" href="https://calendly.com/fleetdm/demo?utm_source=landing+demo+banner" target="_blank">
               Schedule a demo
             </a>