add Apiary check

Author: Vladimir Kotal

.github/workflows/apiary.yml

@@ -0,0 +1,14 @@
+name: Check Apiary blueprint
+
+# TODO: restrict path to apiary.apib
+on: [push, pull_request]
+
+jobs:
+  ubuntu:
+    name: Ubuntu
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout master branch
+      uses: actions/checkout@v2
+    - name: Build
+      run: node dev/parse.js