Add spellcheck (and scope for future linting)

.github/workflows/test.yml

@@ -13,6 +13,16 @@ jobs:
       with:
         python-version: 3.8
 
+   - name: Codespell action
+      uses: plettich/[email protected]
+
+    #- name: Markdown Linting Action
+    #  uses: avto-dev/[email protected]
+    #  with:
+        # rules: '/lint/rules/changelog.js'
+        # config: '/lint/config/changelog.yml'
+    #    args: '.'
+
     - name: install mkdocs
       run: |
           pip install mkdocs mkdocs-material mkdocs-git-revision-date-localized-plugin

.markdownlint.json

@@ -0,0 +1,13 @@
+{
+  "comment": "Relaxed rules",
+
+  "default": true,
+  "whitespace": false,
+  "MD013": { "line_length": 120 },
+  "ul-start-left": false,
+  "ul-indent": false,
+  "no-inline-html": false,
+  "no-bare-urls": false,
+  "fenced-code-language": false,
+  "first-line-h1": false
+}