add ci (#2)

* add ci

* format code

* update go version

* update go file

* add kindlegen

* update go file

* update go file

* test ci

* multiline run

* edit go file

* fix tar

* mv kindlegen to usr local bin

.github/workflows/format.yml

@@ -0,0 +1,15 @@
+name: Format
+
+on:
+  push:
+    paths:
+      - '**.go'
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Check formatting
+      run: if [[ -n "$(gofmt -l .)" ]]; then exit 1; fi

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: Test
+
+on:
+  push:
+    paths:
+      - '**.go'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.17
+    - name: Install kindlegen
+      run: |
+        curl -L https://github.com/lapwat/papeer/releases/download/kindlegen/kindlegen_linux_2.6_i386_v2_9.tar.gz > kindlegen.tar.gz
+        tar xzvf kindlegen.tar.gz
+        chmod +x kindlegen
+        mv kindlegen /usr/local/bin
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Test
+      run: make test