chore(version): downgrade from 0.9.0 to 0.8.13

- Revert package version from 0.9.0 to 0.8.13
- Update PyPI release configuration
- Resolve compatibility issues with dependent packages

Author: ngawangtrinley

README.md

@@ -67,6 +67,7 @@ cd botok
 pip install -e .
 ```
 
+
 ## Basic Usage
 
 ### Simple Word Tokenization