less restrictive license

README.md

@@ -1,9 +1,13 @@
 ---
-license: cc-by-nc-sa-4.0
-task_categories: ["automatic-speech-recognition"]
-language: ["vi"]
+license: cc-by-4.0
+task_categories:
+- automatic-speech-recognition
+- text-to-speech
+language:
+- vi
 pretty_name: VLSP 2020 - VinAI - ASR challenge dataset
-size_categories: ["10K<n<100K"]
+size_categories:
+- 10K<n<100K
 dataset_info:
   features:
   - name: audio
@@ -28,6 +32,7 @@ configs:
 official announcement:
 - tiếng việt: https://institute.vinbigdata.org/events/vinbigdata-chia-se-100-gio-du-lieu-tieng-noi-cho-cong-dong/
 - in eglish: https://institute.vinbigdata.org/en/events/vinbigdata-shares-100-hour-data-for-the-community/
+- VLSP 2020 workshop: https://vlsp.org.vn/vlsp2020
 
 official download: https://drive.google.com/file/d/1vUSxdORDxk-ePUt-bUVDahpoXiqKchMx/view?usp=sharing
 
@@ -37,7 +42,7 @@ contact: info@vinbigdata.org
 
 pre-process: merge all transcript text files into 1, remove token `<unk>`
 
-need to do: restore foreign words phonetised to vietnamese
+need to do: check misspelling, restore foreign words phonetised to vietnamese
 
 usage with HuggingFace:
 ```python