moving default pipeline script

.az-pipelines/sign-windows-artifacts.yml

@@ -0,0 +1,15 @@
+trigger: none
+
+pool:
+  vmImage: 'windows-latest'
+
+steps:
+- task: DownloadGitHubRelease@0
+  inputs:
+
+  displayName: 'Git Release Artifacts'
+
+- script: |
+    npm install
+    npm run build
+  displayName: 'npm install and build'

azure-pipelines.yml

@@ -1,21 +0,0 @@
-# Node.js
-# Build a general Node.js project with npm.
-# Add steps that analyze code, save build artifacts, deploy, and more:
-# https://docs.microsoft.com/azure/devops/pipelines/languages/javascript
-
-trigger:
-- main
-
-pool:
-  vmImage: 'ubuntu-latest'
-
-steps:
-- task: NodeTool@0
-  inputs:
-    versionSpec: '10.x'
-  displayName: 'Install Node.js'
-
-- script: |
-    npm install
-    npm run build
-  displayName: 'npm install and build'