Update bubble_sort.md

snippets/bubble_sort.md

@@ -1 +1,20 @@
 ### bubble_sort
+
+bubble sort also makes it too simple for sorting any list or array. It simply compares the two neighbouring values and swap them.
+
+```python
+def bubbleSort(arr):
+    for passnum in range(len(arr)-1,0,-1):
+        for i in range(passnum):
+            if arr[i]>arr[i+1]:
+                temp = arr[i]
+                arr[i] = arr[i+1]
+                arr[i+1] = temp
+
+```
+
+```python
+arr = [54,26,93,17,77,31,44,55,20]
+bubbleSort(arr)
+print("sorted %s" arr) # sorted via bubble sort
+```