Add GitHub Action

.github/workflows/typos.yml

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+name: Test GitHub Action
+on: [push, pull_request]
+
+jobs:
+  run:
+    name: Spell Check with Typos
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Actions Repository
+      uses: actions/checkout@v4
+
+    - name: Writes changes in the local checkout
+      uses: crate-ci/typos@master
+      with:
+        write_changes: true
+        files: ./docs/source/ProgrammingGuide/ ./docs/source/API/ ./docs/source/*.rst ./docs/source/*.md
+        config: ./.typos.toml

.typos.toml

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+[default]
+# Don't check text that matches the following regexes'
+extend-ignore-re = []
+
+[default.extend-identifiers]
+# Don't correct these whole identifiers (word-groups)
+
+[default.extend-words]
+# Don't correct these word (parts)
+countr = "countr"
+OT = "OT"
+
+# Don't check the following files
+[files]
+extend-exclude = []