Misformatted/linked wiki entry in python sorting

[MarlieChiller]

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This file should be edited (I tried, but I dont think you can edit wikis on forks)

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and requires modifying the markdown to this:

<h2>Selection sort</h2>

**selection sort**, algorithm sorts an array by repeatedly finding the minimum element (considering ascending order) from the unsorted part and putting it at the beginning. The algorithm maintains two subarrays in a given array.
<ol>
<li> The subarray which is already sorted.</li>
<li> Remaining subarray which is unsorted.</li>

In every iteration of selection sort, the minimum element (considering ascending order) from the unsorted subarray is picked and moved to the sorted subarray.

#### Properties:
- Worst-case performance O(n^2)
- Best-case performance O(n)
- Average case performance O(n^2)

**read more at: [Wikipedia](https://en.wikipedia.org/wiki/Selection_sort)**<br>
**code: [Selection sort](https://github.com/TheAlgorithms/Python/blob/master/sorts/selection_sort.py)**

***

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