Add CI configurations. Edit README

Author: shellyln

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Test
+
+on: [push, pull_request]
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  test:
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+        go-version: ['1.18.x', '1.19.x', '1.20.x']
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Get dependencies
+      run: go get -v -t -d ./...
+
+    - name: Test code
+      run: go test -v ./...

README.md

@@ -1,6 +1,14 @@
 # go-open-soql-visualizer
+SOQL query visualizer powered by [go-open-soql-parser](https://github.com/shellyln/go-open-soql-parser) and Mermaid.
 
 
+[![Test](https://github.com/shellyln/go-open-soql-visualizer/actions/workflows/test.yml/badge.svg)](https://github.com/shellyln/go-open-soql-visualizer/actions/workflows/test.yml)
+[![release](https://img.shields.io/github/v/release/shellyln/go-open-soql-visualizer)](https://github.com/shellyln/go-open-soql-visualizer/releases)
+[![Go version](https://img.shields.io/github/go-mod/go-version/shellyln/go-open-soql-visualizer)](https://github.com/shellyln/go-open-soql-visualizer)
+
+<img src="https://raw.githubusercontent.com/shellyln/go-open-soql-parser/master/_assets/logo-opensoql.svg" alt="logo" style="width:250px;" width="250">
+
+## 🧭 Demo
 
 ## ⚖️ License