EnhancedIndexingStrategy currently not reproduceable

[tonduy]

🐛 Bug Description

Dear Qlib Team,

Thank you very much for providing this great framework! I am currently trying to test the EnhancedIndexingStrategy and for that I wanted to test it with qrun examples/portfolio/config_enhanced_indexing.yaml. But when trying to follow the respective READMEthe link to get the weight data created by you is unfortunately not working wget http://fintech.msra.cn/stock_data/downloads/csi300_weight.zip.

To Reproduce

Steps to reproduce the behavior:

1. Run "wget http://fintech.msra.cn/stock_data/downloads/csi300_weight.zip"
2. Receive error due to unavailability of the side

[SunsetWolf]

Thanks for raising the issue, we've fixed it in PR 1812.