Consolidate documentation

- collapse duplicate powershell moduled READMEs
- replace empty "moved to wiki" markdown files with a section in
  README.md

Author: aramprice

README-stembuild-modules.md README-powershell-modules.mdREADME-stembuild-modules.md renamed to README-powershell-modules.md

@@ -1,3 +1,4 @@
+# BOSH Powershell Modules
 Powershell scripts to set up a Windows VM in a manner appropriate for a BOSH Stemcell.
 
 ## Testing
@@ -8,8 +9,13 @@ The test suite for each module currently assumes that the tests are being run wi
 
 This requires iterating through the module directories to run all the tests:
 
-```
-cd stembuild
+Two copies of BOSH Powershell Modules exist in this repo:
+- `stembuild/modules`
+- `modules`
+
+```powershell
+# Where MODULES_DIR is ""ci/tasks/delete-vms/delete-vms.iml, or "modules"
+cd $MODULES_DIR
 foreach ($module in (Get-ChildItem "./modules").Name) {
   Push-Location "modules/$module"
     $results=Invoke-Pester -PassThru
@@ -23,21 +29,21 @@ echo "Failed Tests: $result"
 
 If you just need to test a single module, you could do this:
 
-```
-cd "stembuild\module\BOSH.<module>"
+```powershell
+cd "$MODULES_DIR\BOSH.<module>"
 Invoke-Pester
 ```
 
-## Running a subset of tests on MacOS
+## Running a subset of tests on macOS
 
-You can use Powershell and MacOS to run the tests that do not require Windows system calls:
+You can use Powershell and macOS to run the tests that do not require Windows system calls:
 
-```
+```shell
 cd ~/workspace
 brew install powershell
 git clone --depth 1 --branch 4.4.0 [email protected]:pester/Pester.git
 pwsh
 Import-Module ./Pester/Pester.psm1
 cd stembuild/module/BOSH.<module>
 Invoke-Pester
-```
+```

README-psmodules.md

@@ -39,3 +39,13 @@ bundle exec rspec
 ```
 
 Acceptance testing for stemcells should be done with [bosh-windows-acceptance-tests](https://github.com/cloudfoundry/bosh-windows-acceptance-tests)
+
+## Relocated Documentation
+- azure-light-stemcell.md
+  - https://github.com/cloudfoundry/bosh-windows-stemcell-builder/wiki/Using-the-Azure-Light-Stemcell
+- create-manual-openstack-stemcells.md
+  - https://github.com/cloudfoundry/bosh-windows-stemcell-builder/wiki/Create-Manual-OpenStack-Stemcells
+- manual-stemcell-dotnet-version-guide.md
+  - https://github.com/cloudfoundry/bosh-windows-stemcell-builder/wiki/Manual-Stemcell-DotNet-Version-Guide
+- with-concourse.md
+  - https://github.com/cloudfoundry/bosh-windows-stemcell-builder/wiki/Windows-Worker-and-Concourse-Setup