Add callouts markdown extension

This extension allows using the "GitHub alert"[1] syntax for
admonitions. This is used to write admonitions in a way that are nicely
rendered by GitHub too.

[1] https://docs.github.com/en/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts

Signed-off-by: Leandro Lucarella <luca-frequenz@llucax.com>

Author: llucax

cookiecutter/{{cookiecutter.github_repo_name}}/mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
   - attr_list
   - def_list
   - footnotes
+  - github-callouts
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true

cookiecutter/{{cookiecutter.github_repo_name}}/pyproject.toml

@@ -94,6 +94,7 @@ dev-formatting = ["black == 25.1.0", "isort == 6.0.0"]
 dev-mkdocs = [
   "Markdown == 3.7",
   "black == 25.1.0",
+  "markdown-callouts == 0.4.0",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",

tests_golden/integration/test_cookiecutter_generation/actor/frequenz-actor-test/mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
   - attr_list
   - def_list
   - footnotes
+  - github-callouts
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true

tests_golden/integration/test_cookiecutter_generation/actor/frequenz-actor-test/pyproject.toml

@@ -53,6 +53,7 @@ dev-formatting = ["black == 25.1.0", "isort == 6.0.0"]
 dev-mkdocs = [
   "Markdown == 3.7",
   "black == 25.1.0",
+  "markdown-callouts == 0.4.0",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",

tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
   - attr_list
   - def_list
   - footnotes
+  - github-callouts
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true

tests_golden/integration/test_cookiecutter_generation/api/frequenz-api-test/pyproject.toml

@@ -64,6 +64,7 @@ dev-formatting = ["black == 25.1.0", "isort == 6.0.0"]
 dev-mkdocs = [
   "Markdown == 3.7",
   "black == 25.1.0",
+  "markdown-callouts == 0.4.0",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",

tests_golden/integration/test_cookiecutter_generation/app/frequenz-app-test/mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
   - attr_list
   - def_list
   - footnotes
+  - github-callouts
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true

tests_golden/integration/test_cookiecutter_generation/app/frequenz-app-test/pyproject.toml

@@ -52,6 +52,7 @@ dev-formatting = ["black == 25.1.0", "isort == 6.0.0"]
 dev-mkdocs = [
   "Markdown == 3.7",
   "black == 25.1.0",
+  "markdown-callouts == 0.4.0",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",

tests_golden/integration/test_cookiecutter_generation/lib/frequenz-test-python/mkdocs.yml

@@ -71,6 +71,7 @@ markdown_extensions:
   - attr_list
   - def_list
   - footnotes
+  - github-callouts
   - pymdownx.details
   - pymdownx.highlight:
       anchor_linenums: true

tests_golden/integration/test_cookiecutter_generation/lib/frequenz-test-python/pyproject.toml

@@ -49,6 +49,7 @@ dev-formatting = ["black == 25.1.0", "isort == 6.0.0"]
 dev-mkdocs = [
   "Markdown == 3.7",
   "black == 25.1.0",
+  "markdown-callouts == 0.4.0",
   "mike == 2.1.3",
   "mkdocs-gen-files == 0.5.0",
   "mkdocs-literate-nav == 0.6.1",