Correcting snippet template

Correcting snippet template for transpose_matrix function. Adding briefly explanation and modifying the code.

snippets/transpose_matrix.md

@@ -3,19 +3,18 @@ title: transpose_matrix
 tags: matrix,list,zip,intermediate
 ---
 
+Obtaining the transpose of a matrix making use of `zip()` function.
+
 Python `zip()` function takes the iterable elements as input and returns the iterator.
 Since zip funtion returns a `zip object`, we can cast it as list wit `list()`.
 ```py
-list(zip([1,2,3],['a','b','c'], [True, False, True]))
-# Output: [(1, 'a', True), (2, 'b', False), (3, 'c', True)]
+list(zip([1,2,3],['a','b','c'], [True, False, True])) # [(1, 'a', True), (2, 'b', False), (3, 'c', True)]
 ```
 
 Using `*list`, we can access to each element of the list
 ```py
-[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
-# Output: [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
-*[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
-# Output: [1, 2, 3] [4, 5, 6] [7, 8, 9] [10, 11, 12]
+[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]  # [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
+*[[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] # [1, 2, 3] [4, 5, 6] [7, 8, 9] [10, 11, 12]
 ```
 
 Combining these two elements we can transpose a matrix. We can access to each row of the matrix using the operator `*` to use them as args of `zip()` function.
@@ -23,7 +22,8 @@ Combining these two elements we can transpose a matrix. We can access to each ro
 ```py
 def transpose_matrix(l:list):
     return list(zip(*l))
-
-print(transpose_matrix([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]))
-# Output: [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]
+```
+
+```py
+print(transpose_matrix([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]])) # [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]
 ```