docs: add macOS support section to README

feat: add native macOS support for CPU and Memory metrics

docs: clarify configuration file creation in README

feat: add homebrew support via goreleaser

docs: add note about GOPATH in README

docs: improve README branding and update config to PERFDECK_CONFIG

chore: rename project to perfdeck and bump to v0.3.0

docs: add CHANGELOG for v0.2.0

fix: Update module path to github.com/sumant1122/Perfmon and bump version to 0.2.0.

chore: prepare for v0.1.0 release

feat: Add issue templates for bug reports and feature requests, and enhance contributing guidelines

Replace image for Perfmon with Toml

Update images in README for Perfmon

docs: Refactor README configuration section, replacing old examples and command notes with a new default commands list.

refactor: Introduce constants for common string literals and improve type assertion safety in tests.