* delete contrib Research and legacy

* add acl2019-arnor

* add readme.md for PaddleKG

* update CoKE

* add readme for KTNET

* update readme

* update readme

* update readme

* update readme of KTNET

* update readme of KTNET

* add source files for KTNET

* update files for KTNET

* update files for KTNET

* update draft of readme for KTNET

* modified scripts for KTNET

* fix typos in readme.md for KTNET

* update scripts for KTNET

* update scripts for KTNET

* update readme for KTNET

* edit two-staged training scripts for KTNET

* add details in the readme of KTNET

* fix typos in the readme of KTNET

* added eval scripts for KTNET

* rename folders for KTNET

* add copyright in the code and add links in readme for KTNET

* add the remaining download link for KTNET

* add md5sum for KTNET

* final version for KTNET