Fixed typos

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

src/courses/user/03.md

@@ -14,7 +14,7 @@ The main pillars are
 - Plan
 - Harden
 - Validate
-- Normailze
+- Normalize
 - Visualize
 
 The SAF helps teams plan what guidance will help them keep their software secure. It also provide libraries and tools for automatically hardening and validating software based on that guidance, normalize other security data, and visualize all the information to properly inform teams of risk and vulnerabilities. 
@@ -23,7 +23,7 @@ The SAF helps teams plan what guidance will help them keep their software secure
 ::: details 2. Is SAF a tool? Why or why not?
 Nope! 
 
-SAF, the Security Automation Framework, is a Framework and uses a COLLECTION of tools, techniques, applications, and libraries to streamline security automation. Since teams operate in different environments with different components, not everyone's security journey will look the same.
+SAF, the Security Automation Framework, is a Framework that uses a COLLECTION of tools, techniques, applications, and libraries to streamline security automation. Since teams operate in different environments with different components, not everyone's security journey will look the same.
 
 
 Some notable tools within the Security Automation Framework are Vulcan, the SAF CLI, and Heimdall.