Add Tailwind workshop slides

workshop-tailwind-css/sections/task-5-loops.rst

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+.. page:: titlePage
+
+.. class:: centredtitle
+
+Task 5: Refactor - avoid duplication using loops
+
+.. page:: standardPage
+
+Before we start
+---------------
+
+.. code-block::
+    :include: code/task-5-before.txt
+
+Using a loop
+------------
+
+.. code-block:: html 
+    :include: code/loops-1.txt
+
+Using a loop
+------------
+
+.. code-block:: twig 
+    :include: code/loops-2.txt