Add content for python sets (#6414)

* update Python Sets

* Update src/data/roadmaps/python/content/sets@soZFqivM3YBuljeX6PoaX.md

* Update src/data/roadmaps/python/content/sets@soZFqivM3YBuljeX6PoaX.md

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Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/python/content/sets@soZFqivM3YBuljeX6PoaX.md

@@ -1 +1,7 @@
 # Sets
+
+Python Set is an unordered collection of data types that is iterable, mutable, and has no duplicate elements. The order of elements in a set is undefined though it may consist of various elements. The major advantage of using a set, as opposed to a list, is that it has a highly optimized method for checking whether a specific element is contained in the set.
+
+  Visit the following resources to learn more:
+  
+  -[@video@Python Sets tutorial for Beginners](https://www.youtube.com/watch?v=t9j8lCUGZXo)