Adding references

Author: yashwanth-adimulam

data_structures/arrays/dynamic_array.py

@@ -3,6 +3,8 @@
 Date    : October 22, 2024
 
 Implement the class of DynamicArray with useful functions based on it.
+References: https://en.wikipedia.org/wiki/Dynamic_array
+            https://www.geeksforgeeks.org/how-do-dynamic-arrays-work/
 
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