Many updates.

- README.
- pre-commit.
- GitLab CI.

.gitlab-ci.yml

+---
+include:
+  - project: shore/ci-templates
+    file: templates/pre-commit.yml
+  - project: shore/ci-templates
+    file: templates/pre-commit-repo.yml

.pre-commit-config.yaml

-# vim:ff=unix ts=2 sw=2 ai expandtab
 ---
 repos:
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.2.3
+  - repo: https://github.com/pre-commit/pre-commit-hooks.git
+    rev: v3.4.0
     hooks:
       - id: check-added-large-files
       - id: check-executables-have-shebangs
       - id: check-merge-conflict
-      - id: detect-private-key
+      - id: check-symlinks
       - id: trailing-whitespace
+
+  - repo: https://github.com/Yelp/detect-secrets
+    rev: v0.14.3
+    hooks:
+      - id: detect-secrets
+
   - repo: https://github.com/adrienverge/yamllint
-    rev: v1.16.0
+    rev: v1.25.0
     hooks:
       - id: yamllint
-  - repo: https://github.com/amperser/proselint
+
+  - repo: https://github.com/amperser/proselint/
     rev: 0.10.2
     hooks:
       - id: proselint
         types: [plain-text]
         exclude: LICENSE
-  - repo: https://www.shore.co.il/git/shell-pre-commit/
+
+  - repo: https://github.com/executablebooks/mdformat.git
+    rev: 0.5.3
+    hooks:
+      - id: mdformat
+
+  - repo: https://git.shore.co.il/nimrod/shell-pre-commit.git
     rev: v0.6.0
     hooks:
       - id: shell-lint
+
+  - repo: https://github.com/shellcheck-py/shellcheck-py.git
+    rev: v0.7.1.1
+    hooks:
       - id: shellcheck
+
+  - repo: https://github.com/pre-commit/pre-commit.git
+    rev: v2.9.3
+    hooks:
+      - id: validate_manifest
+
   - repo: local
     hooks:
       - id: hadolint
@@ -33,11 +55,3 @@ repos:
         language: script
         entry: pre-commit-docker-wrapper
         args: [hadolint]
-      - id: dockerfile-lint
-        name: dockerfile-lint
-        description: A rule based 'linter' for Dockerfiles
-        minimum_pre_commit_version: '0.18.0'
-        types: [dockerfile]
-        language: script
-        entry: pre-commit-docker-wrapper
-        args: [hadolint]

Dockerfile

@@ -17,5 +17,3 @@ RUN apk add --update --no-cache --repository http://dl-cdn.alpinelinux.org/alpin
     hadolint --version
 COPY docker-compose-config dockerfile-lint /usr/local/bin/
 USER nobody
-LABEL Name docker-pre-commit
-LABEL Version 0.3.0

README.md

 # Docker pre-commmit
 
+[![pipeline status](https://git.shore.co.il/nimrod/docker-pre-commit/badges/master/pipeline.svg)](https://git.shore.co.il/nimrod/docker-pre-commit/-/commits/master)
+
 > Pre-commit hooks for Docker and docker-compose.
 
 ## Requirements
@@ -7,13 +9,6 @@
 - [Docker](https://www.docker.com/).
 - [pre-commit](https://pre-commit.com/) 0.18.0 or later.
 
-## Hooks
-
-- `hadolint` - The [hadolint](https://github.com/hadolint/hadolint) Dockerfile
-  linter.
-- `docker-compose` - Validate the Docker Compose file using `docker-compose
-  config`.
-
 ## Usage example
 
 ```yaml
@@ -31,7 +26,7 @@ This software is licensed under the MIT license (see `LICENSE.txt`).
 
 ## Author Information
 
-Nimrod Adar, [contact me](mailto:nimrod@shore.co.il) or visit my [website](
-https://www.shore.co.il/). Patches are welcome via [`git send-email`](
-http://git-scm.com/book/en/v2/Git-Commands-Email). The repository is located
-at: <https://git.shore.co.il/nimrod/>.
+Nimrod Adar, [contact me](mailto:nimrod@shore.co.il) or visit my
+[website](https://www.shore.co.il/). Patches are welcome via
+[`git send-email`](http://git-scm.com/book/en/v2/Git-Commands-Email). The repository
+is located at: <https://git.shore.co.il/expore/>.