VISTAAR: Starter Pack

### Description:
Documentation - Prepare a Starter Kit that covers these items:

Tech Aspects:
- Beckn Overview
- Beckn Overview - What is Beckn
- Open Network Tech Documentation
- Sandbox User Guide
- Beckn Sandbox
- Example JSONs
- Postman Collections
- Sample JSONs
- ONIX Documentation for Network Deployments
- ONIX User Guide
- ONIX Implementation Guide

Once documents are prepared, add to the confluence page here: [Confluence Page](https://fide-official.atlassian.net/wiki/spaces/TPP/pages/399441921/VISTAAR) so that it's ready to be shared with users.

### Goals:
- [ ] Create comprehensive Beckn Overview documentation.
- [ ] Compile Open Network tech documentation including Sandbox User Guide, Example JSONs, Postman Collections, and Sample JSONs.
- [ ] Prepare ONIX documentation including User Guide and Implementation Guide.
- [ ] Add all documents to the specified Confluence page.

### Expected Outcome:
- A complete and accessible Starter Kit for VISTAAR that includes all necessary technical documentation and is readily available on the Confluence page.

### Acceptance Criteria:
- [ ] Beckn Overview documentation is prepared and reviewed.
- [ ] Open Network tech documentation is compiled and organized.
- [ ] ONIX documentation for network deployments is completed.
- [ ] All documents are uploaded to the Confluence page.

### Mockups / Wireframes:
NA

### Product Name:
Beckn

### Domain:
AgriNet

### Tech Skills Needed:
Technical Writing, Beckn Protocol Knowledge, ONIX Documentation

### Complexity:
High

### Category:
Documentation

### Sub Category:
Starter Kit