fix: omit href backslash (#1532)

Author: rafikalid

_layouts/recipe.html

@@ -70,7 +70,7 @@ <h1>{{ site.data.tutorials[page.static_data].title }}</h1>
           <div class="example-content">
             <div class="text">
                {{ site.data.tutorials[page.static_data].introduction }}
-               <BR><BR>To see this tutorial in action, <a href="https://www.confluent.io/confluent-cloud/tryfree/\?next=tutorials/ksql-recipe-{{ page.static_data }}">click here</a> to launch it now. It will pre-populate the ksqlDB code in the Confluent Cloud Console and provide mock data or stubbed out code to connect to a real data source. For more detailed instructions, follow the steps below.
+               <BR><BR>To see this tutorial in action, <a href="https://www.confluent.io/confluent-cloud/tryfree/?next=tutorials/ksql-recipe-{{ page.static_data }}">click here</a> to launch it now. It will pre-populate the ksqlDB code in the Confluent Cloud Console and provide mock data or stubbed out code to connect to a real data source. For more detailed instructions, follow the steps below.
             </div>
             {% if site.data.tutorials[page.static_data].introduction-media %}
               <img class="image" src="{{ site.data.tutorials[page.static_data].introduction-media | relative_url }}" />