Use Node 16/18 and Setup GitHub Actions (#26)

* Use Node 18 and Setup GitHub Actions

* Use npm ci in github actions

* Back to npm install

Using npm ci chokes w/ node 14 -- so use npm install.

Also update checkout and setup-node actions to use v3.

.github/workflows/ci-workflow.yml

@@ -0,0 +1,35 @@
+name: CI Checks
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    name: Check audit, lint, and prettier
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '18'
+      - run: npm install
+      - run: npm audit
+      - run: npm run lint
+      - run: npm run prettier
+        env:
+          CI: true
+
+  test:
+    name: Test node ${{ matrix.node }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        node: [ '14', '16', '18' ]
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm test

.tool-versions

@@ -1 +1 @@
-nodejs 14.21.1
+nodejs 18.16.0

README.md

@@ -111,14 +111,21 @@ codeService.ensureValueSetsInLibraryWithApiKey(library, true, 'myUmlsApiKey')
 });
 ```
 
+# Testing the Code
+
+To run the automated unit tests, execute the following command:
+```
+$ npm test
+```
+
 # Linting the Code
 
 To encourage quality and consistency within the code base, all code should pass eslint without any warnings.  Many text editors can be configured to automatically flag eslint violations.  We also provide an npm script for running eslint on the project.  To check your code against eslint's rules, execute the following command:
 ```
 $ npm run lint
 ```
 
-To fix any code that violates eslint's rules:
+To automatically fix code that violates eslint's rules:
 ```
 $ npm run lint:fix
 ```
@@ -130,7 +137,14 @@ To encourage quality and consistency within the code base, all code should also
 $ npm run prettier
 ```
 
-To fix any code that violates Prettier's rules:
+To automatically fix any code that violates Prettier's rules:
 ```
 $ npm run prettier:fix
+```
+
+# Altogether Now!
+
+To run the unit tests, linter, and prettier all in one shot, execute the following command:
+```
+$ npm run test:plus
 ```