Update README (#3)
Update README (#3)

Update README to fix known issues and add workarounds for known gotchas. We will almost certainly have to update this more before release to fix other issues, but this fixes all currently known issues. We should probably also add more detail on how to get started.

BitFunnel/NativeJIT,BitFunnel/NativeJIT,BitFunnel/NativeJIT,BitFunnel/NativeJIT,BitFunnel/NativeJIT