add codespell

Author: zjb0807

.codespell/codespellrc

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+[codespell]
+skip = .git,Cargo.lock
+count =
+quiet-level = 3
+ignore-words = ./.codespell/ignore.txt

.codespell/ignore.txt

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+codespell==2.4.1

.codespell/requirements.txt

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+# A Github action that using codespell to check spelling.
+# see .codespell/* for configs
+# https://github.com/codespell-project/codespell
+
+name: codespell
+
+on:
+  # Triggers the workflow on push or pull request against main
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  codespell:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
+      - name: Install codespell requirements
+        run: pip install -r ./.codespell/requirements.txt
+
+      - name: Spell check
+        run: codespell --config=./.codespell/codespellrc