automatically update readme example versions when packing nuget

README.md

@@ -94,8 +94,8 @@ Windows apps should be as fast and as easy to install and update as apps like Go
 5. Create a Squirrel release using the `Squirrel.exe` command line tool. 
    The tool can be downloaded from GitHub Releases, and it is also bundled into the [Clowd.Squirrel](https://www.nuget.org/packages/Clowd.Squirrel/) nuget package. 
    If installed through NuGet, the tools can usually be found at:
-   - `%userprofile%\.nuget\packages\Clowd.Squirrel\<Clowd.Squirrel version>\tools`, or;
-   - `..\packages\Clowd.Squirrel\<Clowd.Squirrel version>\tools`
+   - `%userprofile%\.nuget\packages\clowd.squirrel\2.7.89-pre\tools`, or;
+   - `..\packages\clowd.squirrel\2.7.89-pre\tools`
 
    Once you have located the tools folder, create a release. Minimal example below with some useful options, but explore `Squirrel.exe -h` for a complete list.
    ```cmd

pack.ps1

@@ -1,13 +1,23 @@
+using namespace System.IO
+using namespace System.Text.RegularExpressions
+
 Set-Location "$PSScriptRoot"
 $ErrorActionPreference = "Stop"
 
 # get current git version
 $gitVerJson = (&nbgv get-version -f json) | ConvertFrom-Json
 $version = $gitVerJson.SimpleVersion + $gitVerJson.PrereleaseVersion
 
+# build nuget package
 & "$PSScriptRoot\vendor\NuGet.exe" pack "$PSScriptRoot\src\Clowd.Squirrel.nuspec" `
 -BasePath "$PSScriptRoot\src" `
 -OutputDirectory "$PSScriptRoot\build" `
 -Version $version
 
-& "$PSScriptRoot\vendor\7zip\7z.exe" a "$PSScriptRoot\build\SquirrelTools-$version.zip" -tzip -aoa -y -mmt on "$PSScriptRoot\build\publish\*"
+# build zip for github releases
+& "$PSScriptRoot\vendor\7zip\7z.exe" a "$PSScriptRoot\build\SquirrelTools-$version.zip" -tzip -aoa -y -mmt on "$PSScriptRoot\build\publish\*"
+
+# update readme examples with latest version
+$readmePath = "$PSScriptRoot\README.md"
+$newText = [Regex]::Replace([File]::ReadAllText($readmePath), "Clowd\.Squirrel\\.+?\\tools", "clowd.squirrel\$version\tools", [RegexOptions]::Multiline + [RegexOptions]::IgnoreCase)
+[File]::WriteAllText($readmePath, $newText)