Add Reverse Array example in Python

CONTRIBUTORS.md

@@ -2,4 +2,5 @@
 
 Thanks to everyone contributing to this repository!  
 
-- [Your Name Here]  
+- [Your Name Here]
+- Shrihari Bhilwadikar

reverse_array.py

@@ -0,0 +1,23 @@
+# Reverses an array in Python using simple methods
+
+# Example array
+arr = [1, 2, 3, 4, 5]
+print("Original array:", arr)
+
+# Using slicing
+reversed_arr = arr[::-1]
+print("Reversed array (slicing):", reversed_arr)
+
+# Using reverse() method
+arr_copy = arr.copy()  # make a copy to keep original intact
+arr_copy.reverse()
+print("Reversed array (reverse method):", arr_copy)
+
+# Manual swapping
+manual_arr = arr.copy()
+start, end = 0, len(manual_arr) - 1
+while start < end:
+    manual_arr[start], manual_arr[end] = manual_arr[end], manual_arr[start]
+    start += 1
+    end -= 1
+print("Reversed array (manual swap):", manual_arr)