Fix broken links in Markdown files

This also introduces markdown-link-check as a pre-commit hook to
check broken links in the Markdown files of the repository. The hook
has been set as manual so developers need to run it explicitly.

.markdown-link-check.json

@@ -0,0 +1,7 @@
+{
+  "ignorePatterns": [
+    {
+      "pattern": "^http://(127.0.0.1|localhost)"
+    }
+  ]
+}

.pre-commit-config.yaml

@@ -53,3 +53,13 @@ repos:
     - types-requests
     - types-python-dateutil
     - pytest
+- repo: https://github.com/tcort/markdown-link-check
+  rev: v3.12.2
+  hooks:
+  - id: markdown-link-check
+    stages: [manual]
+    args: [--quiet, --config, .markdown-link-check.json]
+    exclude: |
+      (?x)^(
+        src/dashboard/src/media/vendor/.*\.md
+      )

CONTRIBUTING.md

@@ -426,9 +426,9 @@ Further content comes after a blank line.
 [GitHub]: https://github.com/
 [guide]: https://help.github.com/articles/fork-a-repo
 [excellent]: https://help.github.com/articles/using-pull-requests
-[Line comment]: http://i.imgur.com/FsWppGN.png
+[Line comment]: https://i.imgur.com/FsWppGN.png
 [code review guidelines]: https://github.com/artefactual/archivematica/blob/qa/1.x/code_review.md
-[interactive rebase feature]: http://www.git-scm.com/book/en/Git-Tools-Rewriting-History
+[interactive rebase feature]: https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History
 [Contributor's Agreement]: https://wiki.archivematica.org/images/e/e6/Archivematica-CLA-firstname-lastname-YYYY.pdf
 [Apache Foundation]: http://apache.org
 [contributor license]: http://www.apache.org/licenses/icla.txt

README.md

@@ -105,5 +105,5 @@ see the [getting started] page.
 [Test workflow]: https://github.com/artefactual/archivematica/actions/workflows/test.yml
 [User Group]: https://groups.google.com/forum/#!forum/archivematica
 [Website]: https://www.archivematica.org/
-[Wiki]: https://www.archivematica.org/wiki/Development
+[Wiki]: https://wiki.archivematica.org/Development
 [YouTube channel]: https://www.youtube.com/@ArtefactualSystems

SECURITY.md

@@ -50,7 +50,7 @@ the original report, there are a couple steps you can take:
 
 - Email the Archivematica Program Manager directly at
   [[email protected]](mailto:[email protected])
-- Email Artefactual's info address: [[email protected]]([email protected])
+- Email Artefactual's info address: [[email protected]](mailto:[email protected])
 
 Any information you share with the Archivematica development team as a part of
 this process will be kept confidential within the team. If we determine that the

hack/README.md

@@ -44,7 +44,7 @@ Artefactual developers use Docker Compose on Linux heavily so it's important
 that you're familiar with it, and some choices in the configuration of this
 environment break in other operative systems.
 
-[audience-compose-reference]: https://docs.docker.com/compose/reference/overview/
+[audience-compose-reference]: https://docs.docker.com/reference/cli/docker/compose/
 
 ## Requirements
 

src/dashboard/frontend/README.md

@@ -315,8 +315,6 @@ cleaner. For example, instance methods on controller objects can be easily
 referenced from templates, which obviates the need to assign functions to
 properties.
 
-Here's a good guide that covers over how this works: <https://angular-tips.com/blog/2015/06/using-angular-1-dot-x-with-es6-and-webpack/>
-
 ### Modules
 
 ES6 provides support for real modules with their own separate namespaces.
@@ -380,7 +378,7 @@ The contents of `app/locale` should be tracked in git.
 
 [webpack]: https://webpack.github.io
 [community Angular style-guide]: https://github.com/johnpapa/angular-styleguide#application-structure
-[Jasmine]: https://jasmine.github.io/2.3/introduction.html
+[Jasmine]: https://jasmine.github.io/
 [Babel]: https://babeljs.io
 [in the Babel documentation]: https://babeljs.io/docs/learn-es2015/
 [template string]: https://babeljs.io/docs/learn-es2015/#template-strings

src/dashboard/install/README.md

@@ -792,7 +792,7 @@ provides an example that implements the logging behaviour used in Archivematica
 [DATABASES]: https://docs.djangoproject.com/en/1.8/ref/settings/#databases
 [Sending email]: https://docs.djangoproject.com/en/1.8/topics/email/
 [USER]: https://docs.gunicorn.org/en/stable/settings.html#user
-[GROUP]: https://docs.gunicorn.org/en/styable/settings.html#group
+[GROUP]: https://docs.gunicorn.org/en/stable/settings.html#group
 [BIND]: https://docs.gunicorn.org/en/stable/settings.html#bind
 [WORKERS]: https://docs.gunicorn.org/en/stable/settings.html#workers
 [How Many Workers?]: https://docs.gunicorn.org/en/stable/design.html#how-many-workers
@@ -805,4 +805,4 @@ provides an example that implements the logging behaviour used in Archivematica
 [ERRORLOG]: https://docs.gunicorn.org/en/stable/settings.html#errorlog
 [LOGLEVEL]: https://docs.gunicorn.org/en/stable/settings.html#loglevel
 [PROC-NAME]: https://docs.gunicorn.org/en/stable/settings.html#proc-name
-[django-csp policy settings]: (<https://django-csp.readthedocs.io/en/latest/configuration.html#policy-settings>
+[django-csp policy settings]: https://django-csp.readthedocs.io/en/latest/configuration.html#policy-settings