feat(docs): add CI Spell check

.github/spelling.yml

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+files:
+  - "**/*.mdx"
+ignore:
+  - "**/node_modules/**"
+  - "**/vendor/**"
+  - "**/*.jpg"
+  - "**/*.png"
+  - ".github/"
+  - "**/*.gif"

.github/workflows/spell-check.yml

@@ -0,0 +1,78 @@
+name: Check Spelling
+
+on:
+  push:
+    branches:
+    - '**'
+    tags-ignore:
+    - '**'
+  pull_request_target:
+    branches:
+    - '**'
+    types:
+    - 'opened'
+    - 'reopened'
+    - 'synchronize'
+
+jobs:
+  spelling:
+    name: Check Spelling
+    permissions:
+      contents: read
+      pull-requests: read
+      actions: read
+      security-events: write
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+
+    - name: Run spell check
+      uses: check-spelling/check-spelling@main  # Use the main branch or the latest version available
+      with:
+        checkout: true
+        check_file_names: 1
+        spell_check_this: check-spelling/spell-check-this@main  # Use the main branch or the latest version available
+        use_magic_file: 1
+        report-timing: 1
+        warnings: bad-regex,binary-file,deprecated-feature,large-file,limited-references,no-newline-at-eof,noisy-file,non-alpha-in-dictionary,token-is-substring,unexpected-line-ending,whitespace-in-dictionary,minified-file,unsupported-configuration,no-files-to-check
+        experimental_apply_changes_via_bot: 1
+        use_sarif: 1
+        extra_dictionary_limit: 20
+        extra_dictionaries:
+          cspell:software-terms/dict/softwareTerms.txt
+
+  comment-pr:
+    name: Report (PR)
+    runs-on: ubuntu-latest
+    needs: spelling
+    permissions:
+      contents: read
+      pull-requests: write
+    if: success() || failure()
+    steps:
+    - name: Comment PR
+      uses: check-spelling/check-spelling@main
+      with:
+        checkout: true
+        spell_check_this: check-spelling/spell-check-this@main
+        task: ${{ needs.spelling.outputs.followup }}
+        experimental_apply_changes_via_bot: 1
+
+  update:
+    name: Update PR
+    permissions:
+      contents: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    if: github.event_name == 'issue_comment' && github.event.issue.pull_request && contains(github.event.comment.body, '@check-spelling-bot apply')
+    concurrency:
+      group: spelling-update-${{ github.event.issue.number }}
+      cancel-in-progress: false
+    steps:
+    - name: Apply spelling updates
+      uses: check-spelling/check-spelling@main
+      with:
+        experimental_apply_changes_via_bot: 1
+        checkout: true
+        ssh_key: "${{ secrets.CHECK_SPELLING }}"

pages/test-document.mdx

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+# This is a test documnt
+
+Ths file has several intentional erors to test the speling workflow.
+
+FetchAI is a corect term, but other non-allowed words shuld be flaged.