manipulating MongoDB using CRUD operations.
## Instructions
1. "contact" data is created.
2. "contactlist" collection is Created.
3. the following documents are inserted into the "contactlist" collection:
- Last name: Ben Lahmer, First name: Fares, Email: fares@gmail.com, age: 26
- Last name: Kefi, First name: Seif, Email: kefi@gmail.com, age: 15
- Last name: Fatnassi, First name: Sarra, Email: sarra.f@gmail.com, age: 40
- Last name: Ben Yahia, First name: Rym, age: 4
- Last name: Cherif, First name: Sami, age: 3
# Display Operations
4. All of the contacts list are dsiplayed.
5. All the information about only one person using his ID are Displayed.
6. All the contacts with an age >18 displayed.
7. All the contacts with an age >18 and name containing "ah" are displayed.
# Update and Delete Operations
8. Contact's first name is changed from "Kefi Seif" to "Kefi Anis".
9. The contacts that are aged under <5 are deleted.
10. All of the contacts list are displayed.
# mondodb-checkpoint