Add automated tests

.github/workflows/tests.yml

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+name: tests
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '14.x'
+    - run: npm install
+    - run: npm test

.gitignore

@@ -0,0 +1,2 @@
+/node_modules
+/package-lock.json

package.json

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+{
+  "name": "selfhosted_templates",
+  "version": "1.0.0",
+  "description": "Portainer Templates for Selfhosted Projects/Homelabs.",
+  "private": true,
+  "devDependencies": {
+    "valid-json-cli": "^1.4.1",
+    "yaml-validator": "^3.0.0"
+  },
+  "scripts": {
+    "pretest": "validjson Template/template.json",
+    "test": "yaml-validator Template/Stack/*"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/SelfhostedPro/selfhosted_templates.git"
+  },
+  "author": "Qballjos",
+  "license": "GPLv3"
+}