Add another good site to readings

README.md

@@ -17,6 +17,7 @@ A kernel for RISC-V written in Rust. Currently focused on running on QEMU generi
 - https://os.phil-opp.com/
 - https://github.com/skyzh/core-os-riscv
 - https://twilco.github.io/riscv-from-scratch/2019/04/27/riscv-from-scratch-2.html
+- https://danielmangum.com/categories/risc-v-bytes/
 
 ## RISC-V Spec
 - [Volume I: Unprivileged](https://riscv.org/wp-content/uploads/2019/12/riscv-spec-20191213.pdf)
@@ -31,7 +32,7 @@ A kernel for RISC-V written in Rust. Currently focused on running on QEMU generi
 
 - [ ] Basics
   - [ ] Processes
-  - [ ] Virtual address spaces, page tables
+  - [ ] Virtual addrxess spaces, page tables
   - [ ] Files, directories
   - [ ] Pipes
   - [ ] Multitasking, time-slicing