add github action

.github/workflows/linux.yml

@@ -0,0 +1,39 @@
+name: linux
+
+on:
+  - push
+
+jobs:
+  perl:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        perl-version:
+          - '5.12'
+          - '5.14'
+          - '5.16'
+          - '5.18'
+          - '5.20'
+          - '5.22'
+          - '5.24'
+          - '5.26'
+          - '5.28'
+          - '5.30'
+          - '5.32'
+          - '5.34'
+    container:
+      image: perl:${{ matrix.perl-version }}
+      env:
+        TEST_CLEAN: 1
+    steps:
+      - uses: actions/checkout@v1
+      - name: perl -V
+        run: perl -V
+      - name: Install Dependencies
+        run: |
+          curl -sL https://cpanmin.us/ | perl - App::cpanminus && \
+          cpanm -nq --dev Menlo && \
+          cpanm -nq --with-develop --installdeps .
+      - name: Run Tests
+        run: prove -lr xt