doc: lint markdown files

Only way to have a unified markdown syntax is to enforce the wanted
syntax by linting the files. Don't rely on the many markdown syntaxes,
be consistent.

salt/terraform/README.md

@@ -4,9 +4,9 @@ Terraform installation in Qubes OS.
 
 ## Table of Contents
 
-* [Description](#description)
-* [Installation](#installation)
-* [Usage](#usage)
+*   [Description](#description)
+*   [Installation](#installation)
+*   [Usage](#usage)
 
 ## Description
 
@@ -14,19 +14,23 @@ Install Terraform and use it on the "terraform" app qube.
 
 ## Installation
 
-- Top:
+*   Top:
+
 ```sh
 sudo qubesctl top.enable terraform
 sudo qubesctl --targets=tpl-terraform state.apply
 sudo qubesctl top.disable terraform
 ```
 
-- State:
+*   State:
+
 <!-- pkg:begin:post-install -->
+
 ```sh
 sudo qubesctl state.apply terraform.create
 sudo qubesctl --skip-dom0 --targets=tpl-terraform state.apply terraform.install
 ```
+
 <!-- pkg:end:post-install -->
 
 ## Usage