Add a spellchecker

Author: villfa

.github/.typo-ci.yml

@@ -0,0 +1,7 @@
+dictionaries:
+- fr
+
+excluded_files:
+- ".github/**/*"
+
+spellcheck_filenames: false

.github/workflows/spellcheck.yml

@@ -0,0 +1,22 @@
+# https://github.com/TypoCI/spellcheck-action
+name: Typo CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  spellcheck:
+    name: Typo CI (GitHub Action)
+    runs-on: ubuntu-latest
+    timeout-minutes: 4
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip-spellcheck]')"
+    steps:
+    - name: TypoCheck
+      uses: typoci/spellcheck-action@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}