Quotation mark bug fix (#2005)

Changed double quotation mark " to single quotation ', otherwise the code doesn't work.

Author: YesSeri

docs/content/documentation/getting-started/overview.md

@@ -220,7 +220,7 @@ The `index.html` file inside the `templates` directory should be:
 <h1 class="title">
   This is my blog made with Zola.
 </h1>
-<p>Click <a href="{{/* get_url(path="@/blog/_index.md") */}}">here</a> to see my posts.</p>
+<p>Click <a href="{{/* get_url(path='@/blog/_index.md') */}}">here</a> to see my posts.</p>
 {% endblock content %}
 ```