added csv to json converter script

Author: RajitGupta

csv_to_json/README.md

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+<!--Please do not remove this part-->
+![Star Badge](https://img.shields.io/static/v1?label=%F0%9F%8C%9F&message=If%20Useful&style=style=flat&color=BC4E99)
+![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=103)
+
+# CSV TO JSON
+
+## 🛠️ Description
+<!--Remove the below lines and add yours -->
+This script helps to convert a csv file to a json file.
+
+## ⚙️ Languages or Frameworks Used
+<!--Remove the below lines and add yours -->
+language used - python3.
+Packages required - csv and json.
+if not already installed use pip3 install csv and pip3 install json.
+(If there are a lot of them, including a `requirements.txt` file will work better.)
+
+## 🌟 How to run
+<!--Remove the below lines and add yours -->
+python3 csv_to_json.py.
+
+
+
+## 🤖 Author
+<!--Remove the below lines and add yours -->
+Rajit Gupta.

csv_to_json/csv_to_json.py

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+import csv
+import json
+
+# Function to convert csv to json
+def csv_to_json(file_name): 
+    with open(file_name , 'r') as csv_file:
+        csv_data=csv.DictReader(csv_file)
+        data_list=[row for row in csv_data]
+        json_data = json.dumps(data_list, indent=4)
+        
+    with open('data.json','w') as json_file:
+        json_file.write(json_data)
+
+# main function
+def main():
+    file_name=input()
+    csv_to_json(file_name)
+
+if __name__ == '__main__':
+    main()