pkgz: add page (#16971)

pages/common/pkgz.md

@@ -0,0 +1,24 @@
+# pkgz
+
+> Unified package manager for installing, removing, updating, and searching packages from multiple sources.
+> More information: <https://github.com/roguehashrate/pkgz#-usage>.
+
+- Install a package:
+
+`pkgz install {{package_name}}`
+
+- Remove a package:
+
+`pkgz remove {{package_name}}`
+
+- Search for a package:
+
+`pkgz search {{package_name}}`
+
+- Update all packages in all sources:
+
+`pkgz update`
+
+- Display version:
+
+`pkgz --version`