feat(cli): add docgen cmd for mkdocs pages

docs/cli/workspace-custom-layout-rule.md

@@ -0,0 +1,25 @@
+# workspace-custom-layout-rule
+
+```
+Add a dynamic custom layout for the specified workspace
+
+Usage: workspace-custom-layout-rule <MONITOR> <WORKSPACE> <AT_CONTAINER_COUNT> <PATH>
+
+Arguments:
+  <MONITOR>
+          Monitor index (zero-indexed)
+
+  <WORKSPACE>
+          Workspace index on the specified monitor (zero-indexed)
+
+  <AT_CONTAINER_COUNT>
+          The number of window containers on-screen required to trigger this layout rule
+
+  <PATH>
+          JSON or YAML file from which the custom layout definition should be loaded
+
+Options:
+  -h, --help
+          Print help
+
+```