[Chapel Merge] docs(build): add verbose and quiet flag docs

Branch: refs/heads/main
Revision: 4b86fde9c1044af4894976ae2cbdb2e8399f3f20
Author: arezaii
Link: docs(build): add verbose and quiet flag docs by arezaii · Pull Request #21920 · chapel-lang/chapel · GitHub
Log Message:
docs(build): add verbose and quiet flag docs (#21920)

This PR adds some documentation for the new VERBOSE and QUIET flags that
were added as Makefile options in PR
fix(build): quiet the build output, add verbose option by arezaii · Pull Request #21700 · chapel-lang/chapel · GitHub.

While here, updated capitalization on Makefile to be consistent within
doc.

TESTING:

  • build docs locally and review building page

reviewed by @e-kayrakli - thank you!

Compare: Comparing e013a8c555b31550d2e369e816d77fc925fb4851...f83add2f5c8b9deaf822f4a2d7530fbb46375c12 · chapel-lang/chapel · GitHub

Diff:
M doc/rst/usingchapel/building.rst
https://github.com/chapel-lang/chapel/pull/21920.diff