add example data

.gitignore

@@ -172,7 +172,6 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
-*.txt
 !requirements.txt
 *.log
 *.flac
@@ -181,7 +180,6 @@ minio_config.yaml
 .history/*
 __pycache__/*
 train.log
-*.mp3
 *.tar.gz
 __pycache__/
 demo_examples/