Add libnotify to optdepends

.SRCINFO

@@ -1,7 +1,7 @@
 pkgbase = brave-bin
 	pkgdesc = Web browser that blocks ads and trackers by default (binary release).
 	pkgver = 1.16.76
-	pkgrel = 1
+	pkgrel = 2
 	epoch = 1
 	url = https://brave.com/download
 	arch = x86_64
@@ -16,6 +16,7 @@ pkgbase = brave-bin
 	optdepends = cups: Printer support
 	optdepends = pepper-flash: Adobe Flash support
 	optdepends = libgnome-keyring: Enable GNOME keyring support
+	optdepends = libnotify: Native notification support
 	provides = brave
 	provides = brave-browser
 	conflicts = brave

PKGBUILD

@@ -9,7 +9,7 @@
 
 pkgname=brave-bin
 pkgver=1.16.76
-pkgrel=1
+pkgrel=2
 epoch=1
 pkgdesc="Web browser that blocks ads and trackers by default (binary release)."
 arch=("x86_64")
@@ -18,7 +18,8 @@ license=("MPL2" "BSD" "custom:chromium")
 depends=("gtk3" "nss" "alsa-lib" "libxss" "ttf-font")
 optdepends=("cups: Printer support"
             "pepper-flash: Adobe Flash support"
-            "libgnome-keyring: Enable GNOME keyring support")
+            "libgnome-keyring: Enable GNOME keyring support"
+            "libnotify: Native notification support")
 provides=("${pkgname%-bin}" "brave-browser")
 conflicts=("${pkgname%-bin}")
 source=("$pkgname-$pkgver.zip::https://github.com/brave/brave-browser/releases/download/v${pkgver}/brave-browser-${pkgver}-linux-amd64.zip"