diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 11256d5..08cc0c3 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -20,19 +20,34 @@ just test    # Run test suite
 
 ### Repository Structure
 
-defiant/ ├── src/ # Source code (Perimeter 1-2) ├── lib/ # Library
-code (Perimeter 1-2) ├── extensions/ # Extensions (Perimeter 2) ├──
-plugins/ # Plugins (Perimeter 2) ├── tools/ # Tooling (Perimeter 2)
-├── docs/ # Documentation (Perimeter 3) │ ├── architecture/ # ADRs,
-specs (Perimeter 2) │ └── proposals/ # RFCs (Perimeter 3) ├── examples/
-# Examples (Perimeter 3) ├── spec/ # Spec tests (Perimeter 3) ├──
-tests/ # Test suite (Perimeter 2-3) ├── .well-known/ # Protocol files
-(Perimeter 1-3) ├── .github/ # GitHub config (Perimeter 1) │ ├──
-ISSUE_TEMPLATE/ │ └── workflows/ ├── CHANGELOG.md ├── CODE_OF_CONDUCT.md
-├── CONTRIBUTING.md # This file ├── GOVERNANCE.md ├── LICENSE ├──
-MAINTAINERS.md ├── README.adoc ├── SECURITY.md ├── flake.guix # Guix
-flake (Perimeter 1) └── Justfile # Task runner (Perimeter 1)
-
+```text
+defiant/
+├── src/ # Source code (Perimeter 1-2)
+├── lib/ # Library code (Perimeter 1-2)
+├── extensions/ # Extensions (Perimeter 2)
+├── plugins/ # Plugins (Perimeter 2)
+├── tools/ # Tooling (Perimeter 2)
+├── docs/ # Documentation (Perimeter 3)
+│   ├── architecture/ # ADRs, specs (Perimeter 2)
+│   └── proposals/ # RFCs (Perimeter 3)
+├── examples/ # Examples (Perimeter 3)
+├── spec/ # Spec tests (Perimeter 3)
+├── tests/ # Test suite (Perimeter 2-3)
+├── .well-known/ # Protocol files (Perimeter 1-3)
+├── .github/ # GitHub config (Perimeter 1)
+│   ├── CONTRIBUTING.md # This file
+│   ├── ISSUE_TEMPLATE/
+│   └── workflows/
+├── CHANGELOG.md
+├── CODE_OF_CONDUCT.md
+├── GOVERNANCE.md
+├── LICENSE
+├── MAINTAINERS.md
+├── README.adoc
+├── SECURITY.md
+├── flake.guix # Guix flake (Perimeter 1)
+└── Justfile # Task runner (Perimeter 1)
+```
 
     ---