README.rst: More transform docs.
README.rst: More transform docs.

papandreou/assetgraph,papandreou/assetgraph,assetgraph/assetgraph,slang800/assetgraph,jscinoz/assetgraph,papandreou/assetgraph,jscinoz/assetgraph,slang800/assetgraph,jscinoz/assetgraph