Add maintainers field and optional dependency descriptions

pkg.info

@@ -1,9 +1,11 @@
 name: i3
 description: Improved tiling window manager
 version: "4.25"
-revision: 1
+revision: 2
 url: https://i3wm.org/
 license: BSD
+maintainers:
+  - [email protected]
 architecture: any
 type: source
 depends:
@@ -19,11 +21,11 @@ depends:
   - xcb-util-xrm
   - yajl
 optional_depends:
-  - dmenu
-  - i3-lock
-  - i3-status
-  - rofi
-  - xss-lock
+  - dmenu:Default program launcher
+  - i3-lock:Default screen locker
+  - i3-status:Default status bar generator
+  - rofi:Modern dmenu replacement
+  - xss-lock:Required for the default screen locker
 make_depends:
   - asciidoc
   - meson