Update README.md

README.md

@@ -170,6 +170,8 @@ Zijin Li
                and Han, Baoqiang},
   booktitle = {Proceedings of the 6th Conference on Sound and Music Technology (CSMT)},
   pages     = {53--60},
+  publisher = {Springer Singapore},
+  address   = {Singapore},
   title     = {Constructing a Multimedia Chinese Musical Instrument Database},
   year      = {2019}
 }