omz: add page (#7374)

pages/common/omz.md

@@ -0,0 +1,32 @@
+# omz
+
+> Oh My Zsh command-line tool.
+> More information: <https://github.com/ohmyzsh/ohmyzsh>.
+
+- Update Oh My Zsh:
+
+`omz update`
+
+- Print the changes from the latest update of Oh My Zsh:
+
+`omz changelog`
+
+- Restart the current Zsh session and Oh My Zsh:
+
+`omz reload`
+
+- List all available plugins:
+
+`omz plugin list`
+
+- Enable/Disable an Oh My Zsh plugin:
+
+`omz plugin {{enable|disable}} {{plugin}}`
+
+- List all available themes:
+
+`omz theme list`
+
+- Set an Oh My Zsh theme in `~/.zshrc`:
+
+`omz theme set {{theme}}`