CI を追加

.github/workflows/check.yml

@@ -0,0 +1,45 @@
+name: Check
+
+on:
+  push:
+    paths-ignore:
+      - .gitignore
+      - LICENSE
+      - '**.md'
+    branches-ignore:
+      - 'releases/**'
+
+  pull_request:
+    types:
+      - opened
+      - synchronize
+    paths-ignore:
+      - '*.md'
+
+  workflow_dispatch:
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Using Caches
+        uses: actions/cache@v2.1.3
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+      - name: Setup JDK
+        uses: actions/setup-java@v1.4.3
+        with:
+          java-version: 1.8
+
+      - name: Grant Execute Permission to gradlew
+        run: chmod +x gradlew
+
+      - name: Build with Gradle
+        run: ./gradlew build

README.md

@@ -1,10 +1,10 @@
 # Json.kt: Json bindings for Kotlin Multiplatform
-[![Kotlin](https://img.shields.io/badge/Kotlin-1.4.20-blue.svg)](https://kotlinlang.org)
-[![stable](https://img.shields.io/bintray/v/starry-blue-sky/stable/JsonKt.svg?label=stable)](https://bintray.com/starry-blue-sky/stable/JsonKt/_latestVersion)
-[![dev](https://img.shields.io/bintray/v/starry-blue-sky/dev/JsonKt.svg?label=dev)](https://bintray.com/starry-blue-sky/dev/JsonKt/_latestVersion)
-[![license](https://img.shields.io/github/license/StarryBlueSky/Json.kt.svg)](https://github.com/StarryBlueSky/Json.kt/blob/master/LICENSE)
-[![issues](https://img.shields.io/github/issues/StarryBlueSky/Json.kt.svg)](https://github.com/StarryBlueSky/Json.kt/issues)
-[![pull requests](https://img.shields.io/github/issues-pr/StarryBlueSky/Json.kt.svg)](https://github.com/StarryBlueSky/Json.kt/pulls)  
+[![Kotlin](https://img.shields.io/badge/Kotlin-1.4.30-blue.svg)](https://kotlinlang.org)
+[![GitHub release (latest by date)](https://img.shields.io/github/v/release/StarryBlueSky/Json.kt)](https://github.com/StarryBlueSky/Json.kt/releases)
+[![GitHub Workflow Status](https://img.shields.io/github/workflow/status/StarryBlueSky/Json.kt/Check)](https://github.com/StarryBlueSky/Json.kt)
+[![license](https://img.shields.io/github/license/StarryBlueSky/Json.kt)](https://github.com/StarryBlueSky/Json.kt/blob/master/LICENSE)
+[![issues](https://img.shields.io/github/issues/StarryBlueSky/Json.kt)](https://github.com/StarryBlueSky/Json.kt/issues)
+[![pull requests](https://img.shields.io/github/issues-pr/StarryBlueSky/Json.kt)](https://github.com/StarryBlueSky/Json.kt/pulls)
 
 委譲プロパティを使い, 直感的に Json を Kotlin のクラスに変換できます。  
 Using delegation properties, you can convert Json to Kotlin classes intuitively.  
@@ -66,11 +66,10 @@ fun main() {
 Get Started
 -----------
 
-Latest Json.kt version is [![Stable](https://img.shields.io/bintray/v/starry-blue-sky/stable/JsonKt.svg?label=stable)](https://bintray.com/starry-blue-sky/dev/JsonKt/_latestVersion) or [![Dev](https://img.shields.io/bintray/v/starry-blue-sky/dev/JsonKt.svg?label=dev)](https://dl.bintray.com/starry-blue-sky/dev/JsonKt/_latestVersion).  
+[![GitHub release (latest by date)](https://img.shields.io/github/v/release/StarryBlueSky/Json.kt)](https://github.com/StarryBlueSky/Json.kt/releases)
 
-Stable releases are available at [Bintray](hhttps://dl.bintray.com/starry-blue-sky/stable/JsonKt). EAP builds are also available ([Dev Repository](https://dl.bintray.com/starry-blue-sky/dev/JsonKt)). Every commit is published as EAP build.  
+`build.gradle.kts`
 
-build.gradle.kts:
 ```kotlin
 repositories {
     mavenCentral()