fix(summary): Single typo for Chapter 1 name

src/SUMMARY.md

@@ -1,7 +1,7 @@
 # Summary
 
 - [Introduction](./introduction.md)
-- [Chapter 1: Pirvacy Myths](./chapter_1.md)
+- [Chapter 1: Privacy Myths](./chapter_1.md)
 - [Chapter 2: Threat Modeling](./chapter_2.md)
 - [Chapter 3: Operational Security](./chapter_3.md)
 - [Chapter 4: Privacy Essentials](./chapter_4.md)