Build script is added and updated README.md file

Author: manojkulkarni30

Build.ps1

@@ -0,0 +1,64 @@
+<#
+.SYNOPSIS
+    You can add this to you build script to ensure that psbuild is available before calling
+    Invoke-MSBuild. If psbuild is not available locally it will be downloaded automatically.
+#>
+function EnsurePsbuildInstalled{
+    [cmdletbinding()]
+    param(
+        [string]$psbuildInstallUri = 'https://raw.githubusercontent.com/ligershark/psbuild/master/src/GetPSBuild.ps1'
+    )
+    process{
+        if(-not (Get-Command "Invoke-MsBuild" -errorAction SilentlyContinue)){
+            'Installing psbuild from [{0}]' -f $psbuildInstallUri | Write-Verbose
+            (new-object Net.WebClient).DownloadString($psbuildInstallUri) | iex
+        }
+        else{
+            'psbuild already loaded, skipping download' | Write-Verbose
+        }
+
+        # make sure it's loaded and throw if not
+        if(-not (Get-Command "Invoke-MsBuild" -errorAction SilentlyContinue)){
+            throw ('Unable to install/load psbuild from [{0}]' -f $psbuildInstallUri)
+        }
+    }
+}
+
+# Taken from psake https://github.com/psake/psake
+
+<#
+.SYNOPSIS
+  This is a helper function that runs a scriptblock and checks the PS variable $lastexitcode
+  to see if an error occcured. If an error is detected then an exception is thrown.
+  This function allows you to run command-line programs without having to
+  explicitly check the $lastexitcode variable.
+.EXAMPLE
+  exec { svn info $repository_trunk } "Error executing SVN. Please verify SVN command-line client is installed"
+#>
+function Exec
+{
+    [CmdletBinding()]
+    param(
+        [Parameter(Position=0,Mandatory=1)][scriptblock]$cmd,
+        [Parameter(Position=1,Mandatory=0)][string]$errorMessage = ($msgs.error_bad_command -f $cmd)
+    )
+    & $cmd
+    if ($lastexitcode -ne 0) {
+        throw ("Exec: " + $errorMessage)
+    }
+}
+
+if(Test-Path .\artifacts) { Remove-Item .\artifacts -Force -Recurse }
+
+EnsurePsbuildInstalled
+
+exec { & dotnet restore }
+
+Invoke-MSBuild
+
+$revision = @{ $true = $env:APPVEYOR_BUILD_NUMBER; $false = 1 }[$env:APPVEYOR_BUILD_NUMBER -ne $NULL];
+$revision = "{0:D4}" -f [convert]::ToInt32($revision, 10)
+
+exec { & dotnet pack .\src\GravatarTagHelpers -c Release -o .\artifacts --version-suffix=$revision }
+
+

README.md

@@ -1,5 +1,5 @@
 # GravatarTagHelpers
-Simple tag helper to display the Gravatar image using email address.
+A simple tag helper to display the Gravatar image using email address.
 
 ## Setup
 To use this tag helper, add the following line in ```_ViewImports.cshtml```.

src/GravatarTagHelpers/project.json

@@ -3,7 +3,7 @@
 
   "title": "GravatarTagHelpers",
 
-  "description": "A Simple tag helper to display the Gravatar image using email address.",
+  "description": "A simple tag helper to display the Gravatar image using email address.",
 
   "authors": [ "Manoj Kulkarni" ],