Update nuget.md

docs/nuget.md

@@ -15,7 +15,7 @@ The basic steps are:
             * In the solution explorer, right click the project => click "Pack".
         2. For cake:
             * Add our .nuspec file template, if not present
-            * Run the command .\build.ps1 -Configuration Release -Target Release to build the project under release
+            * Run the command .\build.ps1 -Configuration Release -Target Build to build the project under release
             * Run the command .\build.ps1 -Configuration Release -Target NugetPack to pack it
 2.  Add the package to the local NuGet repository:
     ```