[fix] fix pretrained model link (#1660)

* [fix] fix pretrained model link

* fix link

Author: robin1001

docs/pretrained_models.en.md

@@ -20,7 +20,7 @@ Here is a list of the pretrained models on different datasets. The model structu
 |---    |---    |---    |---    |---    |
 | [aishell](../examples/aishell/s0/README.md)   | CN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/aishell/20210601_u2%2B%2B_conformer_exp.tar.gz)  | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/aishell/20210601_u2%2B%2B_conformer_libtorch.tar.gz)     | <a href="https://www.chumenwenwen.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/chumenwenwen.png" width="100px"></a> |
 | [aishell2](../examples/aishell2/s0/README.md)     | CN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/aishell2/20210618_u2pp_conformer_exp.tar.gz)     | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/aishell2/20210618_u2pp_conformer_libtorch.tar.gz)    | <a href="https://www.chumenwenwen.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/chumenwenwen.png" width="100px"></a> |
-| [gigaspeech](../examples/gigaspeech/s0/README.md)     | EN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/gigaspeech/20210728_u2pp_conformer_exp.tar.gz)   | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/gigaspeech/20210728_u2pp_conformer_libtorch.tar.gz)  |  <a href="https://www.chumenwenwen.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/chumenwenwen.png" width="100px"></a> |
+| [gigaspeech](../examples/gigaspeech/s0/README.md)     | EN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/gigaspeech/gigaspeech_u2pp_conformer_exp.tar.gz)   | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/gigaspeech/gigaspeech_u2pp_conformer_libtorch.tar.gz)  |  <a href="https://www.chumenwenwen.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/chumenwenwen.png" width="100px"></a> |
 | [librispeech](../examples/librispeech/s0/README.md)   | EN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/librispeech/20210610_u2pp_conformer_exp.tar.gz)  | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/librispeech/20210610_u2pp_conformer_libtorch.tar.gz)     |  <a href="https://www.chumenwenwen.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/chumenwenwen.png" width="100px"></a> |
 | [multi_cn](../examples/multi_cn/s0/README.md)     | CN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/multi_cn/20210815_unified_conformer_exp.tar.gz)  | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/multi_cn/20210815_unified_conformer_libtorch.tar.gz)     | <a href="https://www.jd.com" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/jd.jpeg" width="100px"></a> |
-| [wenetspeech](../examples/wenetspeech/s0/README.md)     | CN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/wenetspeech/20220506_u2pp_conformer_exp.tar.gz) | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/wenetspeech/20220506_u2pp_conformer_libtorch.tar.gz)     | <a href="https://horizon.ai" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/hobot.png" width="100px"></a> |
+| [wenetspeech](../examples/wenetspeech/s0/README.md)     | CN    | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/wenetspeech/wenetspeeech_u2pp_conformer_exp.tar.gz) | [Conformer](https://wenet-1256283475.cos.ap-shanghai.myqcloud.com/models/wenetspeech/wenetspeech_u2pp_conformer_libtorch.tar.gz)     | <a href="https://horizon.ai" target="_blank"><img src="https://raw.githubusercontent.com/wenet-e2e/wenet-contributors/main/companies/hobot.png" width="100px"></a> |