The "Build" guide pages of the Readme.md are linking to 404 errors on Github

[RyanSnider]

I'm pretty excited to build and experiment with xStudio, but I'm not experienced enough to build it without the help of guides. Currently, seemingly all the build pages have 404 errors.

[3178336086liupangpang]

docs/reference/build_guides/macos.md The construction document has been placed here, and for some reason, the path in README.md has not been updated

[pmady]

Hi I am first time contributor to this repo, here is the PR to fix that issue
#186
Please le tme know comments/feedback thanks