Work CI-CD

- Update build badge.
- Remove preview mention.
- Update pipeline.

***NO_CI***

Author: josesimoes

README.md

@@ -1,4 +1,4 @@
-[![License](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) [![#yourfirstpr](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](https://github.com/nanoframework/Home/blob/main/CONTRIBUTING.md) [![Build Status](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_apis/build/status/nanoframework.nanoFirmwareFlasher?branchName=develop)](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_build/latest?definitionId=45&branchName=develop) [![NuGet](https://img.shields.io/nuget/v/nanoff.svg?label=NuGet&style=flat&logo=nuget)](https://www.nuget.org/packages/nanoff/) [![Discord](https://img.shields.io/discord/478725473862549535.svg?logo=discord&logoColor=white&label=Discord&color=7289DA)](https://discord.gg/gCyBu8T)
+[![License](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) [![#yourfirstpr](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](https://github.com/nanoframework/Home/blob/main/CONTRIBUTING.md) [![Build Status](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_apis/build/status/nanoFirmwareFlasher?repoName=nanoframework%2FnanoFirmwareFlasher&branchName=main)](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_build/latest?definitionId=45&repoName=nanoframework%2FnanoFirmwareFlasher&branchName=main) [![NuGet](https://img.shields.io/nuget/v/nanoff.svg?label=NuGet&style=flat&logo=nuget)](https://www.nuget.org/packages/nanoff/) [![Discord](https://img.shields.io/discord/478725473862549535.svg?logo=discord&logoColor=white&label=Discord&color=7289DA)](https://discord.gg/gCyBu8T)
 
 ![nanoFramework logo](https://raw.githubusercontent.com/nanoframework/Home/main/resources/logo/nanoFramework-repo-logo.png)
 

README.zh-cn.md

@@ -1,4 +1,4 @@
-[![License](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) [![#yourfirstpr](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](https://github.com/nanoframework/Home/blob/main/CONTRIBUTING.md) [![Build Status](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_apis/build/status/nanoframework.nanoFirmwareFlasher?branchName=develop)](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_build/latest?definitionId=45&branchName=develop) [![NuGet](https://img.shields.io/nuget/v/nanoff.svg?label=NuGet&style=flat&logo=nuget)](https://www.nuget.org/packages/nanoff/) [![Discord](https://img.shields.io/discord/478725473862549535.svg?logo=discord&logoColor=white&label=Discord&color=7289DA)](https://discord.gg/gCyBu8T)
+[![License](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE) [![#yourfirstpr](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](https://github.com/nanoframework/Home/blob/main/CONTRIBUTING.md) [![Build Status](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_apis/build/status/nanoFirmwareFlasher?repoName=nanoframework%2FnanoFirmwareFlasher&branchName=main)](https://dev.azure.com/nanoframework/nanoFirmwareFlasher/_build/latest?definitionId=45&repoName=nanoframework%2FnanoFirmwareFlasher&branchName=main) [![NuGet](https://img.shields.io/nuget/v/nanoff.svg?label=NuGet&style=flat&logo=nuget)](https://www.nuget.org/packages/nanoff/) [![Discord](https://img.shields.io/discord/478725473862549535.svg?logo=discord&logoColor=white&label=Discord&color=7289DA)](https://discord.gg/gCyBu8T)
 
 ![nanoFramework logo](https://raw.githubusercontent.com/nanoframework/Home/main/resources/logo/nanoFramework-repo-logo.png)
 

azure-pipelines.yml

@@ -1,24 +1,28 @@
+# Copyright (c) .NET Foundation and Contributors
+# See LICENSE file in the project root for full license information.
+
 trigger:
   branches:
-    include: 
+    include:
       - main
       - develop
       - release-*
   paths:
-    exclude: 
-      - README.md
-      - README.zh-cn.md
+    exclude:
+      - .github_changelog_generator
+      - .gitignore
       - CHANGELOG.md
       - CODE_OF_CONDUCT.md
       - LICENSE.md
+      - README.md
       - NuGet.Config
-      - .github_changelog_generator
-      - .gitignore
       - assets/*
       - config/*
+      - .github/*
+
   tags:
-    include:
-      - refs/tags/v*
+    include: 
+      - v*
 
 # PR always trigger build
 pr:
@@ -111,8 +115,8 @@ jobs:
         git config --global user.email [email protected]
         git config --global core.autocrlf true
         
-        Write-Host "Checkout develop branch..."
-        git checkout --quiet develop  > $null
+        Write-Host "Checkout main branch..."
+        git checkout --quiet main  > $null
 
         # prepare release and capture output
         Write-Host "Prepare release with NBGV..."
@@ -377,27 +381,6 @@ jobs:
       packagesToPush: '$(Build.ArtifactStagingDirectory)\nanoFramework.Tools.FirmwareFlasher.$(NBGV_NuGetPackageVersion).nupkg'
       publishFeedCredentials: 'NuGet-nanoFirmwareFlasher'
 
-  # create or update GitHub release
-  - task: GithubRelease@1
-    condition: >-
-      and(
-        succeeded(),
-        eq(variables['System.PullRequest.PullRequestId'], ''),
-        not(startsWith(variables['Build.SourceBranch'], 'refs/tags/v')),
-        eq(variables['UPDATE_DEPENDENTS'], 'false')
-      )
-    displayName: Create/Update GitHub PREVIEW release
-    inputs:
-      gitHubConnection: 'github.com_nano-$(System.TeamProject)'
-      tagSource: userSpecifiedTag
-      tag: v$(MY_NUGET_VERSION)
-      title: 'nano firmware flasher v$(MY_NUGET_VERSION)'
-      releaseNotesSource: inline
-      releaseNotesInline: 'add description here'
-      assets: ''
-      isPreRelease: true
-      addChangeLog: false
-
   # create or update GitHub release
   - task: GithubRelease@1
     condition: >-