ci: add CI workflow to check for grammar errors

.github/workflows/spellcheck.yaml

@@ -0,0 +1,29 @@
+# This workflow checks for common grammar and spelling mistake in markdown files.
+ name: Spellcheck
+ on: [pull_request]
+
+ jobs:
+   build:
+     name: Check Grammar and Spelling errors
+     runs-on: ubuntu-latest
+     steps:
+       - name: Checkout 🛎️
+         uses: actions/checkout@v4
+         with:
+           fetch-depth: 0
+
+       - name: Install ⚙️
+         run: npm ci
+
+       - name: Check spelling errors in code snippets 🔍
+         uses: codespell-project/actions-codespell@v2
+         with:
+           path: packages/lsp-smart-contracts/docs
+           check_filenames: true
+           ignore_words_list: datas
+
+       - name: Output Spellcheck Results 📝
+         uses: actions/upload-artifact@v3
+         with:
+           name: Spellcheck Output
+           path: spellcheck-output.txt