[UPDATE] Add personal resources for CS50 (#417)

docs/编程入门/CS50.en.md

@@ -15,3 +15,7 @@ This course has been voted the most popular public course by Harvard students fo
 - Course Website: [2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
 - Recordings: [2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
 - Assignments: [2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
+
+## Personal Resources
+
+All the resources and assignments used by @mancuoj in this course are maintained in [mancuoj/CS50x - GitHub](https://github.com/mancuoj/CS50x).

docs/编程入门/CS50.md

@@ -16,3 +16,7 @@
 - 课程视频：[2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
 - 课程教材：无
 - 课程作业：[2022](https://cs50.harvard.edu/x/2022/), [2023](https://cs50.harvard.edu/x/2023/)
+
+## 资源汇总
+
+@mancuoj 在学习这门课中用到的所有资源和作业实现都汇总在 [mancuoj/CS50x - GitHub](https://github.com/mancuoj/CS50x) 中。

docs/编程入门/CS50P.en.md

@@ -18,3 +18,7 @@ No programming experiences are assumed. So it may be appropriate for anyone who
 - Recordings: [2022](https://www.bilibili.com/video/BV1z5411X7wX)
 - Textbooks: No textbook required
 - Assignments: [2022](https://cs50.harvard.edu/python/2022/)
+
+## Personal Resources
+
+All the resources and assignments used by @mancuoj in this course are maintained in [mancuoj/CS50P - GitHub](https://github.com/mancuoj/CS50P).

docs/编程入门/CS50P.md

@@ -18,3 +18,7 @@ CS50的番外篇，依旧由 David J. Malan 授课。在该课程中你将学会
 - 课程视频：[2022](https://www.bilibili.com/video/BV1z5411X7wX)
 - 课程教材：无
 - 课程作业：[2022](https://cs50.harvard.edu/python/2022/)
+
+## 资源汇总
+
+@mancuoj 在学习这门课中用到的所有资源和作业实现都汇总在 [mancuoj/CS50P - GitHub](https://github.com/mancuoj/CS50P) 中。