Move resource documentation to Wiki

[johlju]

The manual documentation in the root README.md should be moved to the schema MOF files and individual resource README.md's to automatically generate documentation. There must be a README.md in each resource folder for wiki documentation to be generated, see example https://github.com/dsccommunity/FailoverClusterDsc/blob/main/source/DSCResources/DSC_Cluster/README.md.