Edited ch13_security.adoc with Atlas code editor

ch13_security.adoc

@@ -144,7 +144,7 @@ vulnerable encryption keys, and ((("Bitcoin", "security", "principles of", start
 
 === User Security Best Practices
 
-Humans have
+Humans ((("Bitcoin", "security", "best practices", id="bitcoin-security-best-practice")))((("security", "best practices", id="security-best-practice")))((("best practices", "security", id="best-practice-security")))have
 used physical security controls for thousands of years. By comparison,
 our experience with digital security is less than 50 years old. Modern
 general-purpose operating systems are not very secure and not
@@ -288,4 +288,4 @@ lawyer specialized as a "digital asset executor."
 Bitcoin is a complex new technology that is still being explored by developers. Over
 time we will develop better security tools and practices that are easier
 to use by nonexperts. For now, Bitcoin users can use many of the tips
-discussed here to enjoy a secure and trouble-free Bitcoin experience.
+discussed here to enjoy a secure and trouble-free Bitcoin ((("Bitcoin", "security", "best practices", startref="bitcoin-security-best-practice")))((("security", "best practices", startref="security-best-practice")))((("best practices", "security", startref="best-practice-security")))experience.