doc(): fix package description per standard practice

Author: gbataille

githud.cabal

@@ -1,8 +1,8 @@
 cabal-version:       2.2
 name:                githud
 version:             3.1.0
-synopsis:            More efficient replacement to the great git-radar
-description:         Please see README.md (used to be gitHUD)
+synopsis:            Heads up, and you see your GIT context
+description:         GIT Heads Up Display for your terminal prompt. More efficient replacement to the great git-radar. Please see README.md for more info
 homepage:            http://github.com/gbataille/gitHUD#readme
 license:             BSD-3-Clause
 license-file:        LICENSE