docs: add badges

Author: BoxBoxJason

.github/workflows/go.yml

@@ -51,6 +51,8 @@ jobs:
         with:
           go-version: "1.24.2"
       - run: go mod tidy
-      - name: go-test
-        run: |
-          go test -v ./...
+      - run: go install gotest.tools/gotestsum@latest
+      - run: gotestsum --junitfile unit-tests.xml -- -coverprofile=coverage.out -covermode=atomic ./...
+      - uses: codecov/codecov-action@v5
+        with:
+          files: coverage.out

README.md

@@ -2,6 +2,16 @@
 
 ![gitlab-sync logo](./assets/gitlab-sync.png)
 
+[![codecov](https://codecov.io/gh/boxboxjason/gitlab-sync/branch/main/graph/badge.svg)](https://codecov.io/gh/boxboxjason/gitlab-sync)
+![Golang](https://img.shields.io/github/go-mod/go-version/boxboxjason/gitlab-sync)
+![GitHub](https://img.shields.io/github/license/boxboxjason/gitlab-sync)
+![Build](https://img.shields.io/github/workflow/status/boxboxjason/gitlab-sync/CI)
+![Stars](https://img.shields.io/github/stars/boxboxjason/gitlab-sync?style=social)
+![Contributors](https://img.shields.io/github/contributors/boxboxjason/gitlab-sync?style=social)
+![Issues](https://img.shields.io/github/issues/boxboxjason/gitlab-sync)
+![Pull Requests](https://img.shields.io/github/issues-pr/boxboxjason/gitlab-sync)
+![Last Commit](https://img.shields.io/github/last-commit/boxboxjason/gitlab-sync)
+
 (golang) CLI tool to synchronize GitLab projects and groups between two GitLab instances.
 It is designed to be used in a CI/CD pipeline to automate the process of keeping two GitLab instances in sync.