Added class and os alternates

.oh-my-zsh/plugins/brew/README.md

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+# brew plugin
+
+The plugin adds several aliases for common [brew](https://brew.sh) commands.
+
+To use it, add `brew` to the plugins array of your zshrc file:
+```
+plugins=(... brew)
+```
+
+## Aliases
+
+| Alias  | Command              | Description   |
+|--------|----------------------|---------------|
+| brewp  | `brew pin`           | Pin a specified formulae, preventing them from being upgraded when issuing the brew upgrade <formulae> command. |
+| brews  | `brew list -1`       | List installed formulae, one entry per line, or the installed files for a given formulae. |
+| brewsp | `brew list --pinned` | Show the versions of pinned formulae, or only the specified (pinned) formulae if formulae are given. |
+| bubo   | `brew update && brew outdated` | Fetch the newest version of Homebrew and all formulae, then list outdated formulae. |
+| bubc   | `brew upgrade && brew cleanup` | Upgrade outdated, unpinned brews (with existing install options), then removes stale lock files and outdated downloads for formulae and casks, and removes old versions of installed formulae. |
+| bubu   | `bubo && bubc`       | Updates Homebrew, lists outdated formulae, upgrades oudated and unpinned formulae, and removes stale and outdated downloads and versions. |
+| bcubo  | `brew update && brew cask outdated` | Fetch the newest version of Homebrew and all formulae, then list outdated casks. |
+| bcubc  | `brew cask reinstall $(brew cask outdated) && brew cleanup` | Updates outdated casks, then runs cleanup. |