Update README.md

Author: kinshuk-code-1729

README.md

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-# Data-Structures-and-Algorithms
- This repository contains certain basic programs of data structures in C/C++
+# This repository contains some basic programs of Data Structures in C/C++ and various algorithms involved in them.
+## * What is a data structure ?
+- A data structure is a special way of organizing and storing data in a computer so that it can be used efficiently.
+- Array, LinkedList, Stack, Queue, Tree, Graph etc are all basic data structures in C/C++ that stores the data in a special way so that we can access and use the data efficiently.
+## * Why do we need data structures?
+- Data structures are used in almost every program or software system.
+- Specific data structures are essential ingredients of many efficient algorithms, and make possible the management of huge amounts of data, such as large integrated collection of databases.
+- In software design, Data structures are known to be major factors for collection, storing and organizing of data rather than algorithms in some programming languages.
+- Often Data structures are used in the combination of algorithms.
+## * How are data structures used in programming language?
+- The data structure is not any programming language like C, C++, java, etc.
+
+- It is a set of algorithms that we can use in any programming language to structure the data in the memory.
+
+- To structure the data in memory, 'n' number of algorithms were proposed, and all these algorithms are known as Abstract data types.