Update README.md

[luuksommers]

Make it clear that the .wpp.targets should be in the right locations. I had both publish profiles in the root and they both got executed all the time.

From Microsoft.Web.Publishing.targets:

<PropertyGroup Condition="'$(_WebPublishProfileFileWillBeImported)'=='true'">
    <WebPublishProfileCustomizeTargetFile Condition="'$(WebPublishProfileCustomizeTargetFile)'==''">$([System.IO.Path]::ChangeExtension($(WebPublishProfileFile), '.wpp.targets'))</WebPublishProfileCustomizeTargetFile>
    <WebPublishProfileParametersXMLFile Condition="'$(WebPublishProfileParametersXMLFile)'==''">$([System.IO.Path]::ChangeExtension($(WebPublishProfileFile), '.parameters.xml'))</WebPublishProfileParametersXMLFile>
  </PropertyGroup>

  <Import Project="$(WebPublishProfileCustomizeTargetFile)" Condition="'$(WebPublishProfileCustomizeTargetFile)' != '' And Exists($(WebPublishProfileCustomizeTargetFile)) " />

  <!--***************************************************************-->
  <!-- If there is a file named $(WebPublishPipelineProjectName).wpp.targets it will automatically be imported. -->
  <!-- This allows users to extend the build/publish process for the project -->
  <!--***************************************************************-->
  <PropertyGroup>
    <WebPublishPipelineCustomizeTargetFile Condition="'$(WebPublishPipelineCustomizeTargetFile)'==''">$(WebPublishPipelineProjectDirectory)\*.wpp.targets</WebPublishPipelineCustomizeTargetFile>
    <WebPublishPipelineSolutionTargetFile Condition="'$(WebPublishPipelineSolutionTargetFile)'==''">$(WebPublishPipelineProjectDirectory)\..\wpp.deploysettings.targets</WebPublishPipelineSolutionTargetFile>
  </PropertyGroup>