Initial Import

README.md

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+# setup-node
+
+This action sets by node environment for use in actions by:
+
+- optionally downloading and caching a version of node - npm by version spec and add to PATH
+- registering problem matchers for error output 
+
+# Usage
+
+See [action.yml](action.yml)
+
+Basic:
+```yaml
+steps:
+- uses: actions/checkout@master
+- uses: actions/setup-node@v1
+  with:
+    version: '10.x'
+- run: npm install
+- run: npm test
+```
+
+Matrix Testing:
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-16.04
+    strategy:
+      matrix:
+        node: [ '10', '8' ]
+    name: Node ${{ matrix.node }} sample
+    steps:
+      - uses: actions/checkout@master
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm test
+```
+
+# License
+
+The scripts and documentation in this project are released under the [MIT License](LICENSE)
+
+# Contributions
+
+Contributions are welcome!  See [Contributor's Guide](docs/contributors.md)