feat: add bubble sort in Python (doocs#812)

Author: tlei995

basic/sorting/BubbleSort/BubbleSort.py

@@ -0,0 +1,13 @@
+def bubbleSort(arr):
+    n = len(arr)
+    # Iterate over all array elements
+    for i in range(n):
+        # Last i elements are already in place
+        for j in range(n - i - 1):
+            if arr[j] > arr[j + 1]:
+                arr[j], arr[j + 1] = arr[j + 1], arr[j]
+
+
+arr = [64, 34, 25, 12, 22, 11, 90]
+bubbleSort(arr)
+print(arr)