Update readme to include info about currently missing requirements
Update readme to include info about currently missing requirements

sigwo/simplecoin_multi,simplecrypto/simplecoin_multi,sigwo/simplecoin_multi,nickgzzjr/simplecoin_multi,simplecrypto/simplecoin_multi,nickgzzjr/simplecoin_multi,nickgzzjr/simplecoin_multi,simplecrypto/simplecoin_multi,sigwo/simplecoin_multi,simplecrypto/simplecoin_multi,sigwo/simplecoin_multi,nickgzzjr/simplecoin_multi