added post-install script

PKGBUILD

@@ -10,7 +10,7 @@ depends=('pacman'
     'yay'
     'fzf')
 makedepends=('git')
-#install= TODO add post install script to sync pacman file database.
+install=$pkgname.install
 source=("git://github.com/ericlay/$pkgname")
 md5sums=('SKIP')
 

fuzzy-pkg-finder.install

@@ -0,0 +1,4 @@
+## arg 1:  the new package version
+post_install() {
+	sudo pacman -Fy && yay -Fy	
+}