Create used-by.yml to update Used By badge (#211)

* Create used-by.yml to update Used By badge

* add used-by badge to README.md

.github/workflows/used-by.yml

@@ -0,0 +1,27 @@
+name: Used By
+
+on:
+  schedule:
+    # https://crontab.guru/
+    - cron: '0 9 * * 1' # At 09:00 on Monday.
+  workflow_dispatch:
+
+jobs:
+  used-by:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: shenxianpeng/[email protected]
+        with:
+          repo: '${{ github.repository }}'
+          update-badge: 'true'
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
+        with:
+          add-paths: "README.md" # the file path to commit
+          commit-message: "chore: update used-by badge by github-actions[bot]"
+          title: "chore: automatically update used-by badge"
+          base: main
+          labels: documentation
+          delete-branch: true

README.md

@@ -20,6 +20,7 @@
 # C/C++ Linter Action <sub><sup>| clang-format & clang-tidy</sup></sub>
 
 ![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/cpp-linter/cpp-linter-action)
+[![Used by](https://img.shields.io/static/v1?label=Used%20by&message=523&color=informational&logo=slickpic)](https://github.com/cpp-linter/cpp-linter-action/network/dependents)<!-- used by badge -->
 [![GitHub marketplace](https://img.shields.io/badge/marketplace-C%2FC%2B%2B%20Linter-blue?logo=github)](https://github.com/marketplace/actions/c-c-linter)
 [![cpp-linter](https://github.com/cpp-linter/cpp-linter-action/actions/workflows/cpp-linter.yml/badge.svg)](https://github.com/cpp-linter/cpp-linter-action/actions/workflows/cpp-linter.yml)
 [![MkDocs Deploy](https://github.com/cpp-linter/cpp-linter-action/actions/workflows/mkdocs-deploy.yml/badge.svg)](https://github.com/cpp-linter/cpp-linter-action/actions/workflows/mkdocs-deploy.yml)