Enhance Liquid introduction with inline comment example

Added example of inline comments in Liquid code.

Author: Slashek

app/views/pages/api-reference/liquid/introduction.liquid

@@ -136,3 +136,18 @@ You can also use `comment` inside the `liquid` tag:
 %}
 {% endraw %}
 ```
+
+Or you can use `#` for inline comment:
+
+```liquid
+{% raw %}
+{% liquid
+  # This is is my code comment
+  # and this as well
+  
+  echo 'This is not a comment'
+%}
+{% endraw %}
+```
+
+