diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
index e47ffda..4e20557 100644
--- a/.github/workflows/markdownlint.yml
+++ b/.github/workflows/markdownlint.yml
@@ -11,9 +11,7 @@ jobs:
         with:
           config: '.markdownlint.yaml'
           globs: |
-            README.md
-            CHANGELOG.md
-            docs/*.md
+            **/*.md
             !docs/changelog.md
             !docs/index.md
             !docs/license.md
\ No newline at end of file
diff --git a/.markdownlintignore b/.markdownlintignore
new file mode 100644
index 0000000..4a1510f
--- /dev/null
+++ b/.markdownlintignore
@@ -0,0 +1,3 @@
+docs/changelog.md
+docs/index.md
+docs/license.md
\ No newline at end of file
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4498795..fd8d4f5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -21,3 +21,10 @@ repos:
         types: [python]
         require_serial: true
         files: ^(docker2mqtt)/.+\.py$
+  - repo: https://github.com/igorshubovych/markdownlint-cli
+    rev: v0.41.0
+    hooks:
+    -   id: markdownlint
+        args: ["--disable=MD013"]
+    -   id: markdownlint-fix
+        args: ["--disable=MD013", "--fix"]
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 246faae..834ea3f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -8,6 +8,7 @@
     "gethostname",
     "HOMEASSISTANT",
     "levelname",
+    "markdownlint",
     "memorylimit",
     "memoryused",
     "miaucl",
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 14543b3..06db384 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -4,7 +4,7 @@
   "version": "2.0.0",
   "tasks": [
     {
-      "label": "Python: Build docker2mqtt docker image",
+      "label": "Docker: Build docker2mqtt image",
       "type": "shell",
       "command": "docker build --tag docker2mqtt:latest .",
       "problemMatcher": [],
@@ -49,7 +49,7 @@
       }
     },
     {
-      "label": "Python: Run docker2mqtt commit hooks",
+      "label": "pre-commit: run all files",
       "type": "shell",
       "command": "pre-commit run --all-files",
       "problemMatcher": [],
diff --git a/README.md b/README.md
index 2911dbb..57094ef 100755
--- a/README.md
+++ b/README.md
@@ -82,8 +82,8 @@ You can use environment variables to control the behavior.
 | `mqtt_client_id`| `MQTT_CLIENT_ID` | `mqtt2discord` | The client id to send to the MQTT broker. |
 | `mqtt_host`| `MQTT_HOST` | `localhost` | The MQTT broker to connect to. |
 | `mqtt_port`| `MQTT_PORT` | `1883` | The port on the broker to connect to. |
-| `mqtt_user`| `MQTT_USER` | `` | The user to send to the MQTT broker. Leave unset to disable authentication. |
-| `mqtt_password`| `MQTT_PASSWD` | `` | The password to send to the MQTT broker. Leave unset to disable authentication. |
+| `mqtt_user`| `MQTT_USER` | | The user to send to the MQTT broker. Leave unset to disable authentication. |
+| `mqtt_password`| `MQTT_PASSWD` | | The password to send to the MQTT broker. Leave unset to disable authentication. |
 | `mqtt_timeout`| `MQTT_TIMEOUT` | `30` | The timeout for the MQTT connection. |
 | `mqtt_topic_prefix`| `MQTT_TOPIC_PREFIX` | `ping` | The MQTT topic prefix. With the default data will be published to `ping/<hostname>`. |
 | `mqtt_qos`| `MQTT_QOS` | `1` | The MQTT QOS level |
@@ -144,7 +144,3 @@ Following VSCode integrations may be helpful:
 ## Credits
 
 This is a detached fork from the repo <https://github.com/skullydazed/docker2mqtt>, which does not seem to get evolved anymore.
-
-
-TODO:
-- cli interface
\ No newline at end of file