docs: update links in README files for consistency and accuracy

- Updated URLs in the README files for the eunomia-bpf repository to point to the correct build documentation.
- Changed references to the DPDK eBPF support documentation to the new link format.
- Ensured all links in the BCC reference guide and tutorial documents are consistent and functional.

src/45-scx-nest/README.md

@@ -921,7 +921,7 @@ Additional resources that can enhance your understanding include:
 
 - **Linux Kernel Documentation:** [Scheduler Ext Documentation](https://www.kernel.org/doc/html/next/scheduler/sched-ext.html)
 - **Kernel Source Tree:** [Linux Kernel `sched_ext` Tools](https://github.com/torvalds/linux/tree/master/tools/sched_ext)
-- **eBPF Official Documentation:** [https://ebpf.io/docs/](https://ebpf.io/docs/)
+- **eBPF Official Documentation:** [https://docs.ebpf.io/](https://docs.ebpf.io/)
 - **libbpf Documentation:** [https://github.com/libbpf/libbpf](https://github.com/libbpf/libbpf)
 
 Feel free to explore these resources to expand your knowledge and continue your journey into advanced eBPF programming!

src/45-scx-nest/README.zh.md

@@ -897,7 +897,7 @@ IDLE     (16): | ********-------------------------------------------------------
 
 - **Linux 内核文档:** [Scheduler Ext 文档](https://www.kernel.org/doc/html/next/scheduler/sched-ext.html)
 - **内核源树:** [Linux 内核 `sched_ext` 工具](https://github.com/torvalds/linux/tree/master/tools/sched_ext)
-- **eBPF 官方文档:** [https://ebpf.io/docs/](https://ebpf.io/docs/)
+- **eBPF 官方文档:** [https://docs.ebpf.io/](https://docs.ebpf.io/)
 - **libbpf 文档:** [https://github.com/libbpf/libbpf](https://github.com/libbpf/libbpf)
 
 欢迎探索这些资源，扩展您的知识，继续深入学习高级 eBPF 编程的旅程。