remove readme reference, add arm64 build to nightly

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

scripts/nightly.yaml

@@ -233,6 +233,47 @@ stages:
         symbolServerType: TeamServices
         detailedLog: true
 
+- job: "WindowsArm64"
+  displayName: "Windows"
+  pool: 
+    vmImage: "windows-latest"
+  variables:
+     arch: "amd64_arm64"
+  steps:
+    - script: md build
+    - script: |
+         cd build
+         call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" $(arch)
+         cmake $(bindings) -G "NMake Makefiles" ../
+         nmake
+         cd ..
+    - task: CopyFiles@2
+      inputs:
+        sourceFolder: build
+        contents: '*.zip'
+        targetFolder: $(Build.ArtifactStagingDirectory)
+    - task: PublishPipelineArtifact@1
+      inputs:
+        targetPath: $(Build.ArtifactStagingDirectory)
+        artifactName: 'WindowsArm64'
+    - task: CopyFiles@2
+      displayName: 'Collect Symbols'
+      inputs:
+        sourceFolder: build
+        contents: '**/*.pdb'
+        targetFolder: '$(Build.ArtifactStagingDirectory)/symbols'
+    # Publish symbol archive to match nuget package
+    # Index your source code and publish symbols to a file share or Azure Artifacts symbol server
+    - task: PublishSymbols@2
+      inputs:
+        symbolsFolder: '$(Build.ArtifactStagingDirectory)/symbols'
+        searchPattern: '**/*.pdb' 
+        indexSources: false # Github not supported
+        publishSymbols: true
+        symbolServerType: TeamServices
+        detailedLog: true
+
+
 - stage: Package
   jobs:
   - job: NuGet64
@@ -534,6 +575,11 @@ stages:
       inputs:
         artifactName: 'Windows32'
         targetPath: tmp
+    - task: DownloadPipelineArtifact@2
+      displayName: "Download windowsArm64"
+      inputs:
+        artifactName: 'WindowsArm64'
+        targetPath: tmp
     - task: DownloadPipelineArtifact@2
       displayName: "Download windows64"
       inputs: