Merge pull request CheckiO-Missions#5 from marrry/master

Polish translation added

translations/pl/info/task_description.html

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+<!-- Describe task in general -->
+
+<p>
+    Przesuń pierwszy element z danej {% if interpreter.slug == "js-node" %}tablicy (array){% else %}listy{% endif %} na jej koniec. Pusta {% if interpreter.slug == "js-node" %}tablica{% else %}lista{% endif %} lub {% if interpreter.slug == "js-node" %}tablica{% else %}lista{% endif %} zawierająca tylko jeden element powinna pozostać niezmieniona.
+</p>
+
+<p style="text-align: center;">
+    <img  title="example" src="{{MEDIA}}example.png" alt="example" style="max-height: 83px"/>
+</p>
+<!-- Explain input and output values -->
+<p>
+    <strong>Wejście: </strong> {% if interpreter.slug == "js-node" %}Array{% else %}List{% endif %}.
+</p>
+
+<p>
+    <strong>Wyjście: </strong> {% if interpreter.slug == "js-node" %}Array{% else %}Iterable{% endif %}. 
+</p>
+
+
+<!-- Give some usage examples -->
+<div class="for_info_only">
+    <p>
+        <strong>Przykład:</strong>
+    </p>
+
+{% if interpreter.slug == "js-node" %}
+<pre class="brush: javascript">replaceFirst([1, 2, 3, 4]) == [2, 3, 4, 1]
+replaceFirst([1]) == [1]
+replaceFirst([]) == []
+</pre>
+{% else %}
+<pre class="brush: python">replace_first([1, 2, 3, 4]) == [2, 3, 4, 1]
+replace_first([1]) == [1]
+</pre>
+{% endif %}
+</div>
+

translations/pl/info/task_short_description.html

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+Przesuń pierwszy element na koniec.