example: generate markdown

Ensure the markdown generation is tested by running it on the
example YAML files.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib16cf3a8a468dd9d0c59e2aaac604ef08b79f141
diff --git a/example/meson.build b/example/meson.build
index 4911a67..bb4f4a4 100644
--- a/example/meson.build
+++ b/example/meson.build
@@ -55,6 +55,14 @@
 subdir('gen')
 subdir('gen/net')
 
+custom_target(
+    'example_md',
+    command: 'true',
+    output: 'example_md',
+    capture: true,
+    depends: generated_others,
+    build_by_default: true)
+
 executable(
     'calculator-server',
     'calculator-server.cpp',