refactor: replace update-readme script with code embedder action

Author: Anton Staroverov

.github/workflows/update-readme.yml

@@ -7,25 +7,15 @@ on:
       - '.gitconfig-github'
       - '.gitconfig-gitlab'
       - '.github/workflows/update-readme.yml'
-      - 'scripts/update-readme.py'
 
 jobs:
-  update-readme:
+  code_embedder:
     runs-on: ubuntu-latest
     permissions:
       contents: write
     steps:
       - uses: actions/checkout@v4
 
-      - name: Update README with config file contents
-        run: python3 scripts/update-readme.py
-      
-      - name: Commit changes
-        run: |
-          git config user.name "github-actions[bot]"
-          git config user.email "github-actions[bot]@users.noreply.github.com"
-          if ! git diff --quiet HEAD; then
-            git add README.md
-            git commit -m "docs: update README with config file contents"
-            git push
-          fi
+      - uses: kvankova/code-embedder@v1.1.3
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -24,9 +24,7 @@ You'll need the following configuration files. Replace all `PLACE_HOLDER` values
 
 ### `.gitconfig` (Global Git Configuration)
 
-<!-- GITCONFIG_EXAMPLE_START -->
-
-```ini
+```ini:.gitconfig.example
 # ====================================================================
 # Global Git Configuration
 #
@@ -57,8 +55,6 @@ You'll need the following configuration files. Replace all `PLACE_HOLDER` values
     path = .gitconfig-gitlab
 ```
 
-<!-- GITCONFIG_EXAMPLE_END -->
-
 ### `.gitconfig-github` (GitHub-Specific Configuration)
 
 <!-- GITCONFIG_GITHUB_START -->