diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index c1248a9..52a8401 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -35,23 +35,24 @@ You can [read an explanation of the scope and structure of this Guide](#S-abstra
 * [Enum: Enumerations](#S-enum)
 * [R: Resource management](#S-resource)
 * [ES: Expressions and statements](#S-expr)
+* [PER: Performance](#S-performance)
+* [CP: Concurrency](#S-concurrency)
 * [E: Error handling](#S-errors)
 * [Con: Constants and immutability](#S-const)
 * [T: Templates and generic programming](#S-templates)
-* [CP: Concurrency](#S-concurrency)
-* [SL: The Standard library](#S-stdlib)
-* [SF: Source files](#S-source)
 * [CPL: C-style programming](#S-cpl)
-* [PRO: Profiles](#S-profile)
-* [GSL: Guideline support library](#S-gsl)
-* [FAQ: Answers to frequently asked questions](#S-faq)
+* [SF: Source files](#S-source)
+* [SL: The Standard library](#S-stdlib)
 
 Supporting sections:
 
-* [NL: Naming and layout](#S-naming)
-* [PER: Performance](#S-performance)
+* [A: Architectural Ideas](#S-A)
 * [N: Non-Rules and myths](#S-not)
 * [RF: References](#S-references)
+* [PRO: Profiles](#S-profile)
+* [GSL: Guideline support library](#S-gsl)
+* [NL: Naming and layout](#S-naming)
+* [FAQ: Answers to frequently asked questions](#S-faq)
 * [Appendix A: Libraries](#S-libraries)
 * [Appendix B: Modernizing code](#S-modernizing)
 * [Appendix C: Discussion](#S-discussion)