spellcheck: could you please ignore the words in string with '-'

[lzufalcon]

Currently, the words in string with '-' will be replaced too, such as:

1. kvm-riscv -> kvm-RISC-V
2. riscv-test -> RISC-V-test

Such replacement are not required, the string with '-' is a whole file name or something else, we can not touch part of it.

Details:

- 本文是在 Docker 环境下对 [kvm-riscv howto wiki](https://github.com/kvm-riscv/howto/wiki) 中 [KVM RISCV64 on QEMU](https://github.com/kvm-riscv/howto/wiki/KVM-RISCV64-on-QEMU) 和 [KVM RISCV64 on Spike](https://github.com/kvm-riscv/howto/wiki/KVM-RISCV64-on-Spike#7-run-risc-v-kvm-on-spike) 两篇基于 KVM 运行 Host/Guest Linux 的文章的验证和补充。
+ 本文是在 Docker 环境下对 [kvm-RISC-V howto wiki][003] 中 [KVM RISCV64 on QEMU][004] 和 [KVM RISCV64 on Spike][005] 两篇基于 KVM 运行 Host/Guest Linux 的文章的验证和补充。