Change mDNS record to note TLS support. (#132)

.eslintignore

@@ -1,2 +1,3 @@
 **/node_modules/
+/.eslintrc.js
 tmp/

.github/workflows/build.yml

@@ -33,6 +33,7 @@ jobs:
         run: |
           npm install
       - name: Lint with eslint
+        if: ${{ matrix.node-version >= 10 }}
         run: |
           npm run lint
       - name: Run integration tests

lib/server.js

@@ -810,15 +810,22 @@ class WebThingServer {
    * @returns {Promise} Promise which resolves once the server is started.
    */
   start() {
+    const opts = {
+      name: this.name,
+      txt: {
+        path: '/',
+      },
+    };
+
+    if (this.app.isTls) {
+      opts.txt.tls = '1';
+    }
+
     this.mdns = new dnssd.Advertisement(
       new dnssd.ServiceType('_webthing._tcp'),
       this.port,
-      {
-        name: this.name,
-        txt: {
-          path: '/',
-        },
-      });
+      opts
+    );
     this.mdns.on('error', (e) => {
       console.debug(`mDNS error: ${e}`);
       setTimeout(() => {