title: How to concatenate / append a string to another one in Jekyll / Liquid?
body: <p>To be clear, assuming:</p>
  
  <pre><code>{% assign my_var = "123" %}
  {% assign another_var = "456" %}
  </code></pre>
  
  <p>I would like to append string to <code>my_var</code> to get something like <code>123 - 456</code></p>
  
  <p>What I have tried so far:</p>
  
  <pre><code>{% assign my_var = my_var + " - " + another_var %}
  </code></pre>