Update README.md

Author: horychen

README.md

@@ -44,11 +44,11 @@ DoPri54 will be included in future version (including stiffness detection and va
 
 ## Video Tutorials
 For unfamiliar users, I have been creating video tutorials. However, they are currently in Chinese. 
-> If you speak Chinese, I have a dedicated tutorial video on how to make this thing work from the ground up.
-> Please take a look at this link to [知乎](https://zhuanlan.zhihu.com/p/64445558).
-> In fact, now you can check out [my personal page](https://horychen.github.io) for a list of tutorial videos.
+> *See [my Bilibili space](https://space.bilibili.com/7132537) (ACTIVELY UPDATED).*
+> Also take a look at this link to [知乎](https://zhuanlan.zhihu.com/p/64445558) (not acvtively updated).
+> Also check out [my personal page](https://horychen.github.io) for a list of tutorial videos (not acvtively updated). 
 
-In near future, the English version will be brought about. 
+In near future, the English version will be brought about. But I would like to do it in high quality so I procrastinate to do so.
 
 <!-- **[Important Update]** I made a video in English to explain how to use C codes to simulate sensorless drive using the method from one of my papers ("Resistances and Speed Estimation in Sensorless Induction Motor Drives Using a Model with Known Regressors"). Here is the [link]() to it.
 Jiahao