diff --git a/01-getting-started/01-fundamentals.md b/01-getting-started/01-fundamentals.md
index c0fd62e..0043cac 100644
--- a/01-getting-started/01-fundamentals.md
+++ b/01-getting-started/01-fundamentals.md
@@ -8,7 +8,7 @@
 - **Better Resource Utilization**: Linux is lightweight and consumes fewer system resources compared to Windows.
 - **High Scalability**: Linux efficiently scales from small embedded systems to enterprise data centers without performance degradation.
 
-### Security and Reliability
+### Security and Reliability.
 - **Less Vulnerable to Malware**: Linux has strong user privilege separation, making it more secure against viruses and malware.
 - **Frequent and Transparent Updates**: Regular security patches ensure system stability without requiring frequent reboots.
 - **High Stability**: Linux systems can run for years without crashes, ensuring better uptime and reliability.