Create contactbook.md

Added the new contact book report

docs/docs/help/Reports/contactbook.md

@@ -0,0 +1,38 @@
+---
+sidebar_position: 7
+title: Contactbook
+---
+
+# Contactbook
+
+The **Contactbook** report in OpenSign enables you to add and manage contacts.
+
+## Accessing Contactbook
+
+To view your Contactbook:
+
+1. Log in to your OpenSign account.
+2. Navigate to the left sidebar.
+3. Click on the `Contactbook` link under the reports section.
+ 
+<img width="828" alt="Add contact" src="https://github.com/user-attachments/assets/80308df4-33a8-41ee-a240-801f775dcec0" />
+
+## Understanding the Contactbook report
+### Adding a New Contact:
+
+To add a new contact, click the red plus (+) button located at the top-right corner of the Contactbook page. 
+This will open a pop-up where you can enter the contact’s name, email, and phone number.
+
+The Contactbook page displays a list of contacts with the following columns:
+
+- **Sr.No**: A sequential number for each contact.
+- **Name**: The contact's name.
+- **Email**: The contact’s email address.
+- **Phone**: The contact’s phone number (if available).
+ 
+  <img width="828" alt="contactbook" src="https://github.com/user-attachments/assets/524a7aa7-594e-412a-ad50-caebc125c1db" />
+
+### Actions button
+
+- **Delete**: To delete a contact, click on the trash icon located next to the contact’s details. This will remove the contact from your Contactbook. A confirmation prompt may appear to prevent accidental deletions.
+