adding github workflow and readme

.github/workflows/go.yml

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+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.21'
+
+    - id: govulncheck
+      name: Run govulncheck
+      uses: golang/govulncheck-action@v1

readme.md

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+# go-version
+This is a simple go version manager. It allows you to print the current version of the application dynamically by taking advantage of the -ldflags option in the go build command.
+
+The main idea is to have a centralize place to manage the version of the application. This is useful when you have multiple microservices and you want to have a consistent way to manage the version of the application.