Rename Readme.md to README.md

Author: luohongyu

apps/molecular_generation/seq_VAE/Readme.md renamed to apps/molecular_generation/seq_VAE/README.md

@@ -94,4 +94,4 @@ IntDiv: 0.846
   volume={11},
   year={2020},
   publisher={Frontiers Media SA}
-}
+}