diff --git a/.github/workflows/markdown-check.yml b/.github/workflows/markdown-check.yml
new file mode 100644
index 0000000..c40f11f
--- /dev/null
+++ b/.github/workflows/markdown-check.yml
@@ -0,0 +1,27 @@
+name: Markdown check
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    # branches: [ "main" ]
+
+#permissions:
+#  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    
+    - uses: actions/checkout@v4
+
+    # https://github.com/marketplace/actions/github-spellcheck-action
+    - uses: rojopolis/spellcheck-github-actions@0.36.0
+      name: GitHub Spellcheck Action
+      with:
+        source_files: "README.md docs/GITHUB_ACTIONS.md docs/GOOGLE_ANALYTICS.md docs/GOOGLE_CLOUD.md docs/GOOGLE_SHEETS.md docs/RENDER.md"
+        task_name: Markdown
+
+
+
diff --git a/spellcheck.yml b/spellcheck.yml
new file mode 100644
index 0000000..f5b7120
--- /dev/null
+++ b/spellcheck.yml
@@ -0,0 +1,10 @@
+# https://github.com/marketplace/actions/github-spellcheck-action
+
+# https://facelessuser.github.io/pyspelling/configuration/
+
+
+matrix:
+- name: markdown
+  sources:
+  - '**/*.md'
+  default_encoding: utf-8