[Example] Update GCC result (#409)

* fixed flake8

* update parallel

* delete test_gcc

* update readme

* Update .gitignore

* fixed RWR

* update test_gcc

* update code

* update resluts

Co-authored-by: Yukuo Cen <cenyk1230@qq.com>

examples/gcc/README.md

@@ -18,7 +18,15 @@ Non-parallel restart random walks are also allowed, you just need to ensure that
 ## Pretrain
 The dataset for pretrain is provided at this [link](https://pan.baidu.com/#bdlink=M2VmNDhlY2M5ZWM3NDA5YzhjMGUxODJhNTBiMmNkNDcjYjQ2MDZhZTNmZDkzNTI5YjMwMjNkOWI1MTNiMGFkMDcjMjM2NjE1NTkjZGF0YS5wdAo5YjVmOGU0NzE2ODZhNjBiYzIwNDQ2MzgxNjRiY2ZlZSM2MDNiOGU0ZDMwZTExNTQyY2NhZjM1YjY0ODc1MjliOCMyNDIwNzc4NzkjZGF0YS5wdAo0MzAyMjc4M2JkYzUzNjJmYjk0ODE2NzI5MWY4NzRmYyM5NTk0YzEwN2QzZTE0M2U2MjgwNDQ5NmJhZGM4NDc0NCMyNzQyMTI1MDQ3I2RhdGEucHQKOWM1YmJmZDAxOWIyMzc2NzAwMDhhOTBjMGM3YmE5ZjMjODIwNGIwMDU5MWY2ZmIwM2UyN2U1OWYwNDA0MGNlZjMjOTc1NzI3OTI3I2RhdGEucHQKYmNiNTljMTFiYzQ2NWRlMDQxOGZkNjM1ZTFjZGM1MTAjZTMxNjQ2ZGY1NDZjYmM3ODY3YTQ3ZGY0YjNhMTM4NWYjNjcxOTI2OTUjZGF0YS5wdAo2ZGQyYTcwZTc3YTgwOGUzNjlmM2IyNjdmZDM4NzNlMyM3ZTEzY2MyNGQ0YWViNmY2NzBmY2JmYTkzODBjYzY2MiMxNTE0NzE0NDg3I2RhdGEucHQKMGViZWQ2ZGIyMjkwOTI2MWM1M2ZhY2IxNzkxZDBjMTEjZjA3MDM3MDE4MmEyZDU3Njc5NTZiNGY3NjFiNTlhNWMjMTEwNjYzMDM2I2VkZ2VsaXN0LnR4dApiMTU1ZDAyZWIxMWUxODM0ZmExOWE1NGUzODYyYzc1MyM3YmE3ODY1ODY2OTljOTMzNmI2ZDM2N2RhNTJhZGQyMiMxMzQwODc5MTg4I2VkZ2VsaXN0LnR4dAo3Yzg1NzQ3YWVkNzZjM2NkYTU1ZWExNTY0NTE3MGM0ZiNmZDBlMTIwZjRlNDg0Y2I4Y2IyYzkyZWY0ZjFhNDE4NSM3MDM1OTM3MDgjZWRnZWxpc3QudHh0CmEwZTMxYzc0YzhlMDc3NTE1ZDE5MTk1NDRiZWNlZWFhI2NmOWY4OTM2YmVhOTczY2VkOGM0YmZkM2E5ZjA4ZjNhIzI5MzE5MTI2I2VkZ2VsaXN0LnR4dAo4ODIxMzdjZjNmMDFmNmMwODJhZDY3ZTM0MjcxMWVjYyM2OGI0MmYyMmM2MWU1YWI1OWE0ZDRiYTJmNDNiZjYwZSM5ODg2MzQ4I2VkZ2VsaXN0LnR4dAo4ZDViZTRkZDc2NmQ3M2MyNzliYWZhMmU2MjdjNGU3OCNmNDFjZDg5NTU4MzIxNzU1NzI3OGQ3NjFkOWE2ZDlkNyM0MzE3NjgwODYjZWRnZWxpc3QudHh0).
 
-Please put them on the `./data`
+Please put them on the path `./data`
+
+## Performance
+The results of this implementation is shown in the Table.
+|      |usa-airport <br> (freeze)|h-index <br> (freeze)|usa-airport <br> (finetune)|h-index <br> (finetune)|
+|------|:---:|:---:|:---:|:---:|
+|paper |65.6 |75.2 |67.2 |80.6 |
+|CogDL |63.8 |78.4 |69.8 |80.9 |
+
 
 ## Others
 You can also use our already pretrained model parameters to test or fine-tune on different downstream task graphs. Just put the `gcc_pretrain.pt` into the file path `./saved/already_trained_model/`. This file is available for download on baidu netdisk. \