User 2 - Duplicate graphic removed

Signed-off-by: Shivani Karikar <[email protected]>

src/courses/user/02.md

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 As illustrated in the picture below, the process for developing automated security tests starts with requirements documents like SRGs, STIGs, or CIS Benchmarks, which are written in human-readable language. These documents are then implemented as code. We need that code to record test results in a standardized format so that we can easily export our security data to a platform where it can be used to make informed decisions (such as the Heimdall visualization app).
 
 This challenge is what the [MITRE Security Automation Framework](https://saf.mitre.org) (MITRE SAF) was developed to address. It simplifies the journey from a Requirement Document to an automated test profile and back again, making it easier to navigate.
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-![The SAF Lifecycle](../../assets/img/saf-lifecycle.jpg)