diagram.diff

diff --git a/tools/lint/docs/usage.rst b/tools/lint/docs/usage.rst
--- a/tools/lint/docs/usage.rst
+++ b/tools/lint/docs/usage.rst
@@ -1,14 +1,28 @@
 Running Linters Locally
 =======================
 
 Using the Command Line
 ----------------------
 
+.. mermaid::
+
+   sequenceDiagram
+      participant Alice
+      participant Bob
+      Alice->John: Hello John, how are you?
+      loop Healthcheck
+          John->John: Fight against hypochondria
+      end
+      Note right of John: Rational thoughts <br/>prevail...
+      John-->Alice: Great!
+      John->Bob: How about you?
+      Bob-->John: Jolly good!
+
 You can run all the various linters in the tree using the ``mach lint`` command. Simply pass in the
 directory or file you wish to lint (defaults to current working directory):
 
 .. parsed-literal::
 
     ./mach lint path/to/files
 
 Multiple paths are allowed: