Add codespell

.github/workflows/codespell.yml

@@ -0,0 +1,25 @@
+# Codespell configuration is within .codespellrc
+---
+    name: Codespell
+    
+    on:
+      push:
+        branches: [main]
+      pull_request:
+        branches: [main]
+    
+    permissions:
+      contents: read
+    
+    jobs:
+      codespell:
+        name: Check for spelling errors
+        runs-on: ubuntu-latest
+    
+        steps:
+          - name: Checkout
+            uses: actions/checkout@v4
+          - name: Annotate locations with typos
+            uses: codespell-project/codespell-problem-matcher@v1
+          - name: Codespell
+            uses: codespell-project/actions-codespell@v2